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Posted by Lowell on November 02, 2001 at 01:10:33:
FAR FIELD TRIGGERING FROM NEW BRITAIN (MW 7.0) IN FULL SWING SUMMARY Far-field aftershocks from the New Britain earthquake of November
31 appear to be occurring in a number of locations since that event
occurred. The largest event since the last report was a Mb 5.7 in
Northern Sumatera at a distance (58 degrees) where FFA are expected.
Other apparent FFA's have occurred in the region of Wellington, New
Zealand (Ml 4.9 - see NEW ZEALAND section below for more details);
a series of events south of Sumbawa Island, Indonesia (Mb 4.4-5.5);
the Santa Cruz Islands (MB 5.1); the Solomon Islands (MB 4.5); the southern
Vanuatu Islands (MB 5.0); a regional event in New Britain (Mb 4.2) and
aftershocks; an Mb 4.9 near Guam, Mariana Islands; a Mb 4.1 off the coast
north of Tokyo, Japan; an Ml 3.9 in Taiwan; and an Mb 4.8 in the Banda
Sea. GLOBAL Besides the FFA described in the summary above, the world saw
little other moderate seismicity. Most of the remaining events occurred
in the region of Peru - two in central Peru (Mb 4.2 and 5.0) and
one in the aftershock zone of the Mw 8.2 earthquake of June, 2001 -
this aftershock was a Mb 5.1. In Central America an event of Ml 4.4
occurred in northeastern Mexico and may have been related to the
increased activity of Tropical storm Michelle to the east. A Mb 4.8
also occurred in the area south of Panama.
An Mb 4.7 which also may have been affected by a tropical storm -
tropical cyclone Alex occurred in the Mid-Indian ridge about the
time that storm passed the epicentral area. U.S./CANADA Aftershocks of the Anza earthquake of 31 October continued today.
The largest aftershocks occurred during the occurrence of an M3.3
class solar flare this morning (see GEOMAGNETIC EFFECTS section for
details). Also in the California/Nevada region a Ml 3.0 was recorded
near the Ocotillo region this evening. This area has been increasingly
active following the geomagnetic storm and the Anza mainshock. Seismicity
in the area is commonly enhanced by geomagnetic effects so this may
not mean much in terms of increased seismicity overall in the area.
The only other events of Ml>=2 occurred in the Yucca Valley area (Ml 2.1)
and in the Bakersfield region (Ml 2.8).
In northern California two events of Ml>=2.0 hit the Greenville (Ml 2.7)
and Hayfork areas (Ml 2.5). Central California was relatively quiet
except for a Ml 2.3 southwest of Mammoth Lakes.
The only other event in the U.S. of ML>=3 (no such events were
recorded in Alaska or Hawaii today) occurred in the Jackson Lake region
(Ml 3.0). There has been a minor aftershock sequence of this event
(two additional events of Ml>=2.0. The region had been expected
to see enhanced activity with the New Britain earthquake. In June, 1930
Ml 5.8, one of the largest ever recorded in the Jackson Lake
region had followed by one day a Mw 7.1 in the same area of New
Britain as yesterday's earthquake.
The largest earthquake to occur in the Canada region today
hit as a Ml 2.9 WNS of Ft. Simpson, Nunavit. NEW ZEALAND An earthquake of Ml 4.9 occurred this evening (NZST) which was
strongly felt in the Wellington, N.Z. area. The earthquake has
been given initial parameters from IGNS as: O: 02Nov2001 05:06 41.1S 174.5E ML=4.9 IGNS Wellington region, N.Z. This earthquake was followed by a light aftershock several
minutes later which was also probably felt in the Wellington region.
The earthquakes occur while New Zealand was under a seismic watch
from both the geomagnetic storm which began this morning and from
it's relation to the New Britain earthquake (Mw 7.0) of yesterday.
The far-field forecast from that event which occurred at 42
degrees from the New Britain mainshock, had noted: "43-45 degrees: ... most of North and South Island, New Zealand" and "Secondary location where event tend to occur but are not
as large or as likely . MB>=4.8 considered likely in next
10 days. ...North Island, New Zealand" Also, the area was under seismic watch from the strong geomagnetic
storm of 28 October. The report from October 28 had stated: " While these area [referring to sub- and anti-solar areas]
are the most likely to see strong events, other areas in the sub-solar
hemisphere could see seismic enhancements over the next two days. Included
are regions such as the central Aleutians and New Zealand where moderate
seismicity increases may occur immediately." An earthquake near today's epicenter of Ml 3.7 occurred within
3 hours of the arrival of that CME on October 28. It may also be
of some note that the seismogram at Kaori, New Zealand, has been
particularly sensitive to incoming CME in the past several weeks
(see previous reports regarding this). Also it should be noted that in 1999 after the last event of Mw>=7
in this area of New Britain a Mw 5.8 earthquake hit the North Island
on May 18. The New Britain earthquake had occurred early on May 16, 1999
and was followed by a Mw 5.8 early on May 18, 1999 which was strongly
felt in the Wellington area. The recent New Britain event occurred
early on the 31 October and was followed early on November 2 by a
Ml 4.8 which was felt strongly in the Wellington area. In both cases
a difference of approximately 2 days - does history repeat itself? Two moderate aftershocks of the Ms 6.8 earthquake of October
21 have also occurred in the past two days (both of Mb 4.5). The IGNS on-line Seismometer can be found at:
http://www.gns.cri.nz/news/earthquakes/latest_drum.html GEOMAGNETIC/SOLAR FIELDS A moderate geomagnetic storm began about 00:00 UT this morning and
lasted throughout most of the day. The commencement at this time
would put areas within 20 degrees longitude of 180E and 0W in a
minor seismic watch for the next 24 hours. These regions include
western Europe, the central Aleutians and the Tonga/Kermadec/New
Zealand region. Flare # START MAX END CLASS 9430 + 0645 0653 0700 M1.3
9460 + 1125 1210 1308 M3.3
9700 + 1950 1958 2007 M1.5
9770 2138 2352 2359 M1.1 The strongest activity in the Anza, California aftershock sequence
occurred during the largest of these flares (#9460) with events of
Ml 2.0, 2.1, 1.9, and 2.0 occurring during the flare occurrence. Only
one other event was recorded in the Anza aftershock zone today of
Ml>=2 (a Ml 2.0 at 14:23 UT). A moderate earthquake, the largest of
the day (Ml 5.1) also occurred near the coast of Peru at about the
same time (12:21 UT). Some of the recorded Anza events especially at
04:32 may have been ghost events which were actually teleseismic
recordings from Peru (or triggered local seismicity from the seismic
waves from this event. For general space weather conditions see:
http://sec.noaa.gov/today.html
For Solar flare data see:
http://sec.noaa.gov/ftpdir/indices/events/20011101events.txt TROPICAL STORMS Tropical Depression 14 has developed into a Tropical Storm - named
Michelle. Several earthquakes in the eastern Mexico, El Salvador
and Nicaragua area may have been affected by Michelle and occurred
today. This storm is expected to reach category 1 hurricane status
tonight and intensify as it passes over Cuba. It my make landfall
in southern Florida on Monday or Tuesday. Seismicity may increase
along the Central America/Mexico subduction zone with the Pacific
and decrease along the northern subduction zone of the Caribbean
during the course of this Hurricane. In the U.S. seismicity in
the New Madrid/Wabash valley and the Central Plains to the rockies
could increase while seismicity along the N.American/Pacific boundary
could be expected to decrease upon landfall of Michelle.
Residents are advised to prepare for a strong storm.
For tracking information see: http://hurricanes99.com/ Hurricane Octave is centered in the Pacific Ocean far south of
California and Baja at this time. It is expected to dissipate quickly
with no effects on North America expected at this time.
For tracking information see: http://www.wunderground.com/auto/HurricaneSite/tropical/tracking/ep200117.html Tropical Cyclone Alex is dissipating in the south Indian Ocean. It's
current position is about 11S 68E near the site of a moderate earthquake
that occurred there today. No further effects are expected. TIDAL TRIGGERING (LUNAR) Statistics have been done on many regions of the world in terms of
relationship of significant regional earthquakes with respect to lunar cycle.
Each report will summarize the most likely areas for tidal triggering
for the next day based on these statistics. It is expected
that tidal triggering will add an additional 0.5 - 1.0 units of
magnitude to events which are about to occur or will move these
events forward in time by up to seven days in the regions where
there is a statistical correlation between lunar phase and
earthquakes. November 2 is seventeen days after the beginning the lunar month
Regions most likely to experience tidal triggering
on this day (With associated magnitude ranges; the percent change in
seismicity rate over background seismicity rate on this
day of the lunar month; statistical z-value and
significance level) are: Region Magnitude range %change z-value Significance level Kermadec MB>=4.0 13 1.9 0.05
Regions expected to experience reverse triggering (i.e. they are
unlikely to experience a significant event at this period of the
lunar cycle) are:
Region Magnitude range %change z-value Significance level Arctic MB>=4.0 -30 -1.9 0.05
Greece MB>=4.0 -9 -2.3 0.05
N Indonesia MB>=4.0 -35 -1.9 0.05
Utah MB>=0.0 -10 -2.0 0.05
Caribbean MB>=4.0 -22 -2.5 0.04 EARTHQUAKE LISTINGS GLOBAL NEW ZEALAND O: 02Nov2001 05:06 41.1S 174.5E ML=4.9 IGNS Wellington region, N.Z.
Note (IGNS): Felt strongly in the Wellington Region
Note (ED): This earthquake was followed by a light aftershock several
minutes later which was also probably felt in the Wellington region.
The earthquakes occur while New Zealand was under a seismic watch
from both the geomagnetic storm which began this morning and from
it's relation to the New Britain earthquake (Mw 7.0) of yesterday.
The far-field forecast from that event had noted: "43-45 degrees: ... most of North and South Island, New Zealand" and "Secondary location where event tend to occur but are not
as large or as likely . MB>=4.8 considered likely in next
10 days. ...North Island, New Zealand" Also it should be noted that in 1999 after the last event of Mw>=7
in this area of New Britain a Mw 5.8 earthquake hit the North Island
on May 18. The New Britain earthquake had occurred early on May 16, 1999
and was followed by a Mw 5.8 early on May 18, 1999 which was strongly
felt in the Wellington area. The recent New Britain event occurred
early on the 31 October and was followed early on November 2 by a
Ml 4.8 which was felt strongly in the Wellington area. In both cases
a difference of approximately 2 days - does history repeat itself?
O: 30Oct2001 15:35:25 37.0S 179.4E MB=4.5 NEIS OFF E. COAST N. ISL, N.Z.
O: 01Nov2001 07:47:55 37.0S 179.5E MB=4.5 NEIS OFF E. COAST N. ISL, N.Z. OCEANIA O: 01Nov2001 01:40:15 13.8S 66.3E MB=4.7 NEIS MID-INDIAN RIDGE
Note: The occurrence of this event may be related to the passage of
Tropical Cyclone Alex-Andre which passed about 200 km north of this
epicenter this morning. SOUTH PACIFIC ISLANDS O: 31Oct2001 22:57:21 11.6S 164.6E MB=5.1 NEIS SANTA CRUZ ISLANDS REGION
Note: This epicenter is in a region and at a distance (17 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "Secondary location where event tend to occur but are not
as large or as likely . MB>=4.8 considered likely in next
10 days. ...Santa Cruz Islands" and "17-19 degrees: Santa Cruz Isl ..." O: 31Oct2001 20:47:51 10.4S 160.7E MB=4.5 NEIS SOLOMON ISLANDS
Note: This epicenter is in a region and at a distance (11 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "9-10 degrees: ... Solomon Islands (about 160E)" O: 31Oct2001 20:04:48 18.9S 167.8E MB=5.0 NEIS VANUATU ISLANDS
Note: This epicenter is in a region and at a distance (21 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "The most likely events of Mw>=6 in the next 10 days appear to be: Central Vanuatu Islands" and "17-19 degrees: Vanuatu (about 15-16S)"
O: 31Oct2001 19:22:59 7.8S 150.1E MB=4.2 NEIS NEW BRITAIN REGION, P.N.G.
Note: This is a regional aftershock from the Mw 7.0 yesterday at 300
km distance. The FFA forecast had said:
"0-5 degrees: Regional triggering- ... New Britain" O: 01Nov2001 07:19:51 25.3S 179.1W MB=4.0 NEIS SOUTH OF FIJI ISLANDS
Note: This epicenter is in a region and at a distance (35 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "34-36 degrees: ... Samoa/No. Tonga Islands" and "The most likely events of Mw>=6 in the next 10 days appear to be: ..Samoa/Tonga/Foko" [typo should have read Fiji]
ASIA
O: 01Nov2001 00:47:47 8.1S 117.9E MB=4.4 NEIS SUMBAWA REGION, INDONESIA
Note: This epicenter is in a region and at a distance (32 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "34-36 degrees: So. of Bali/Java," and "The most likely events of M>=5 in the next 10 days on the
basis of history and far-field triggering theory appear to be: South of Sumatera/Java" O: 31OCT2001 22:04:30 5.4N 93.9E SR=5.6 AEIC1 W BANDA ACEH, INDONESIA
O: 31Oct2001 22:04:25 6.2N 96.8E mb=5.9 SED NICOBAR ISLANDS, INDIA
O: 31Oct2001 22:04:32 5.4N 94.3E MB=5.7 NEIS N SUMATERA, INDONESIA
Note: This epicenter is in a region and at a distance (58 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "59-61 degrees: Andaman Is." O: 31Oct2001 17:07:35 36.4N 69.4E MB=5.0 NEIS HINDU KUSH, AFGHANISTAN O: 31Oct2001 19:12:14 14.9N 146.9E MB=4.9 NEIS MARIANA ISLANDS
Note: This epicenter is in a region and at a distance (20 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: 17-19 degrees: ... Guam" O: 31Oct2001 05:59:44 2.9N 128.3E MB=5.1 NEIS HALMAHERA, INDONESIA O: 31Oct2001 17:57:34 46.2N 151.7E MB=4.4 NEIS KURIL ISLANDS O: 01NOV2001 22:43 36.1N 139.9E Mj=4.1 NIED SW_IBARAKI_PREF, JAPAN
Note: This epicenter is in a region and at a distance (43 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "43-45 degrees: ... North of Tokyo E. Coast of Honshu (36-38N, 140-142E)" and "The most likely events of Mw>=6 in the next 10 days appear to be: Off East Coast of Honshu, ... Japan"
O: 01NOV2001 7:55:34 23.6N 120.7E ML=3.9 CWB Nantou, Taiwan
Note: This event may have been affected by the New Britain mainshock.
The FFA forecast had said:
"The most likely events of M>=5 in the next 10 days on the
basis of history and far-field triggering theory appear to be: ...Taiwan" O: 01NOV2001 10:10:00 5.1S 122.7E SR=4.8 AEIC1 BANDA SEA, INDONESIA
Note: This event may have been affected by the New Britain mainshock.
The FFA forecast had said: "The most likely events of Mw>=6 in the next 10 days appear to be: ...Banda Sea" O: 01NOV2001 15:31:50 8.7S 116.0E SR=5.0 AEIC1 SW MATARAM, INDONESIA
O: 01NOV2001 15:23:00 9.3S 117.0E SR=5.2 AEIC1 SE SELONG, INDONESIA
O: 01NOV2001 13:25:30 9.5S 116.5E SR=5.2 AEIC1 S PRAYA, INDONESIA
O: 01NOV2001 10:47:50 8.1S 118.5E SR=5.1 AEIC1 N DOMPU, INDONESIA
O: 01NOV2001 10:11:50 9.9S 117.8E SR=5.0 AEIC1 SUMBAWABESAR, INDONESIA
O: 01NOV2001 00:47:50 8.0S 117.6E SR=4.9 AEIC1 SUMBAWABESAR, INDONESIA
Note: These epicenters are in a region and at a distance (34 degrees) from
the New Britain mainshock which would suggest it was a FFA. The forecast
had stated: "34-36 degrees: So. of Bali/Java," and "The most likely events of M>=5 in the next 10 days on the
basis of history and far-field triggering theory appear to be: South of Sumatera/Java"
O: 31OCT2001 22:04:30 5.4N 93.9E SR=5.6 AEIC1 W BANDA ACEH, INDONESIA
O: 31OCT2001 06:05:20 1.2N 98.7E SR=4.8 AEIC1 SW SIBOLGA, INDONESIA
O: 31OCT2001 04:07:10 8.8S 112.5E SR=4.8 AEIC1 SE BLITAR, INDONESIA
CENTRAL/SOUTH AMERICA
O: 31Oct2001 11:30:16 4.0N 82.6W MB=4.8 NEIS SOUTH OF PANAMA
O: 31OCT2001 11:30:17 4.0N 82.4W MC=4.2 CASC SOUTH OF PANAMA O: 01NOV2001 05:22:44 12.9N 88.5W MC=3.6 SIS OFF COAST OF CENTRAL AMERICA
O: 02NOV2001 02:46:55 11.0N 86.0W MC=3.7 SIS NICARAGUA, C.A.
O: 01NOV2001 04:44:45 16.8N 94.9W ML=4.4 SSN ISTMO DE TEHUANTEPEC , MX
Note: The occurrence of these three events may be related to the
intensification of Tropical Storm Michelle to the east. Michelle is expected
to reach hurricane levels tonight and continue tracking north into Cuba and
Florida in the next several days. (This plus events above in Nicaragua
and Coast of Central America). O: 31OCT2001 12:52:37 17.0N 100.2W ML=4.2 SSN GUERRERO , MX
O: 31OCT2001 12:44:36 17.0N 100.2W ML=4.1 SSN GUERRERO , MX
O: 31OCT2001 04:32:54 16.8N 100.2W ML=3.8 SSN COSTA DE GUERRERO , MX
O: 31OCT2001 00:09:44 16.8N 100.3W ML=3.8 SSN COSTA DE GUERRERO , MX
O: 30OCT2001 14:31:57 16.9N 100.1W ML=3.8 SSN COSTA DE GUERRERO , MX
O: 30OCT2001 11:37:52 16.9N 100.2W ML=3.5 SSN COSTA DE GUERRERO , MX
O: 30OCT2001 07:45:09 16.7N 100.3W ML=3.7 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 23:04:57 17.0N 100.1W ML=4.0 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 22:04:26 16.8N 100.2W ML=3.8 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 21:12:57 16.9N 100.2W ML=3.9 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 18:59:31 17.1N 101.3W ML=4.1 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 16:18:29 17.1N 100.2W ML=3.9 SSN GUERRERO , MX
O: 29OCT2001 15:15:10 16.6N 100.0W ML=4.0 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 11:53:04 17.0N 100.2W ML=4.4 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 11:50:41 17.0N 100.2W ML=3.6 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 11:46:14 17.0N 100.2W ML=4.1 SSN GUERRERO , MX
O: 29OCT2001 11:45:19 17.0N 100.3W ML=3.3 SSN COSTA DE GUERRERO , MX
O: 29OCT2001 11:43:11 17.0N 100.2W ML=3.7 SSN GUERRERO , MX
O: 29OCT2001 10:15:43 16.9N 100.1W ML=3.7 SSN COSTA DE GUERRERO , MX
Note: These are part of a strong aftershock sequence following the
Ms 6.1 Guerrero event of 21 October. O: 31Oct2001 22:14:26 10.8S 78.9W MB=5.0 NEIS NEAR COAST OF PERU O: 01NOV2001 13:41 9.4S 76.3W ML=4.2 IGP Tingo Maria, Peru O: 01Nov2001 12:21:35 17.4S 71.8W MB=5.1 NEIS NEAR COAST OF PERU
O: 01NOV2001 12:21 17.4S 71.6W ML=5.0 IGP Punta de Bombon, Peru U.S/CANADA CALIFORNIA/NEVADA O: 2NOV2001 0:35:14 32.9N 115.9W ML=1.8 SCSN NNE of Ocotillo, CA
O: 2NOV2001 3:51:46 33.0N 115.9W ML=2.1 SCSN W of Westmorland, CA
O: 01NOV2001 23:41:33 32.1N 115.8W ML=3.0 SCSN SSE of Ocotillo, CA
O: 02NOV2001 03:51:46 33.0N 115.8W ML=2.1 SCSN SSE of Salton City, CA O: 01NOV2001 12:32:07 33.5N 116.5W ML=2.0 SCSN ESE of Anza, CA
O: 01NOV2001 12:32:19 33.5N 116.5W ML=1.9 SCSN ESE of Anza, CA
O: 01NOV2001 12:32:39 33.5N 116.5W ML=2.1 SCSN ESE of Anza, CA
O: 01NOV2001 14:23:40 33.5N 116.5W ML=2.0 SCSN ESE of Anza, CA
O: 01NOV2001 6:08:41 33.5N 116.5W ML=2.5 SCSN ESE of Anza, CA
O: 01NOV2001 6:06:08 33.5N 116.5W ML=2.7 SCSN ESE of Anza, CA
O: 2NOV2001 2:18:31 33.5N 116.5W ML=1.9 SCSN ESE of Anza, CA
O: 01NOV2001 8:00:31 33.5N 116.5W ML=1.9 SCSN ESE of Anza, CA
O: 01NOV2001 1:58:17 33.5N 116.5W ML=2.0 SCSN ESE of Anza, CA
O: 31OCT2001 23:17:58 33.5N 116.5W ML=1.9 SCSN ESE of Anza, CA O: 01NOV2001 20:57:00 33.9N 116.8W ML=1.5 SCSN E of Banning, CA
O: 2NOV2001 1:36:23 33.9N 116.9W ML=1.4 SCSN NE of Banning, CA O: 01NOV2001 21:49:32 34.3N 116.5W ML=2.1 SCSN N of Yucca Valley, CA O: 01NOV2001 3:40:32 35.3N 118.7W ML=1.4 SCSN NE of Arvin, CA
O: 01NOV2001 10:38:32 35.4N 118.5W ML=1.8 SCSN NNW of Tehachapi, CA
O: 01NOV2001 0:31:39 35.4N 118.8W ML=2.8 SCSN E of Bakersfield, CA O: 31OCT2001 23:45:47 36.0N 115.0W ML=1.6 SCSN SW of Henderson, NV
O: 01NOV2001 21:52:55 36.1N 115.4W ML=1.1 NCSN NNE of Mountain Springs, NV O: 01NOV2001 10:46:18 37.5N 119.0W ML=1.9 NCSN S of Mammoth Lakes, CA
O: 01NOV2001 7:30:14 37.5N 119.0W ML=2.3 NCSN S of Mammoth Lakes, CA O: 01NOV2001 18:38:06 40.1N 120.9W ML=2.7 NCSN SE of Greenville, CA O: 01NOV2001 16:42:28 40.2N 123.1W ML=2.5 NCSN SSE of Hayfork, CA O: 01NOV2001 15:48:05 40.5N 119.8W ML=1.7 NCSN NW of Smoke Creek, NV PACIFIC NORTHWEST/CANADA O: 31OCT2001 2:27:25 48.4N 118.8W ML=1.2 PNSN NNE of Grand Coulee, WA O: 01NOV2001 09:45:08 46.6N 122.5W ML=1.3 PNSN WASHINGTON O: 01NOV2001 12:53:50 62.6N 125.2W ML=2.9 PGC 7 km WNW Ft. Simpson NT O: 30OCT2001 17:46:26 53.1N 132.6W ML=2.2 PGC 1 km WSW Sandspit BC
O: 30OCT2001 07:11:59 53.9N 132.5W ML=1.7 PGC 8 km WSW Massett BC
O: 29OCT2001 22:27:52 52.7N 132.1W ML=2.5 PGC 3 km SSW Sandspit BC O: 30OCT2001 03:42:49 58.1N 142.4W ML=2.8 PGC 4 km SW Yakutat AK
ROCKY MOUNTAIN AREA
O: 31OCT2001 03:36:41 43.5N 110.6W ML=2.1 USBR S of Kelly, WY, MT
O: 31OCT2001 05:19:36 43.6N 110.1W ML=3.0 USBR SE of Moran, WY, MT
O: 31OCT2001 05:19:36 43.6N 110.2W ML=2.2 MBMG 50 km NE of Jackson, WY
O: 31OCT2001 14:29:10 43.7N 111.0W ML=2.0 USBR SSW of Alta, WY, MT
O: 01NOV2001 23:25:32 43.5N 110.5W ML=2.0 USBR SE of Kelly, WY, MT
Note: This may have been a FFA from New Britain. The FFA forecast
had stated: "Areas of U.S. and Canada where triggering may occur (Ml>=4.0) ...Utah around 41N 111-113W" The strongest event in the Jackson Lake region occurred on June 12, 1930
one day after a Mw 7.1 in the New Britain region.
O: 22OCT2001 13:18:59 44.5N 115.1W ML=2.3 MBMG 45 km NW of Stanley, ID
O: 29OCT2001 11:53:37 44.8N 111.5W ML=1.1 MBMG S Madison Valley, MT
O: 31OCT2001 03:49:03 44.6N 110.0W ML=1.4 MBMG NE Yellowstone, MT
O: 28OCT2001 13:00:15 44.7N 111.1W ML=1.1 MBMG Hebgen Lake region, MT O: 23OCT2001 01:30:27 44.7N 112.7W ML=1.4 MBMG Red Rock Valley, MT
O: 22OCT2001 20:24:39 44.7N 112.7W ML=1.4 MBMG Red Rock Valley, MT O: 24OCT2001 15:33:29 45.1N 113.3W ML=1.9 MBMG 35 km W of Dillon, MT O: 29OCT2001 01:25:54 45.7N 112.1W ML=1.0 MBMG 20 km S of Whitehall, MT
O: 28OCT2001 17:04:15 45.7N 112.1W ML=1.2 MBMG 20 km S of Whitehall, MT
O: 24OCT2001 12:55:24 45.7N 112.1W ML=1.1 MBMG 20 km S of Whitehall, MT
O: 27OCT2001 23:13:42 45.7N 112.1W ML=1.5 MBMG 20 km S of Whitehall, MT
O: 28OCT2001 13:19:48 45.7N 112.1W ML=1.3 MBMG 20 km S of Whitehall, MT
O: 29OCT2001 00:51:13 45.7N 112.1W ML=1.2 MBMG 20 km S of Whitehall, MT O: 26OCT2001 02:31:55 46.0N 111.4W ML=1.6 MBMG Clarkston Valley, MT
O: 24OCT2001 06:11:43 46.2N 111.3W ML=1.3 MBMG 15 km SE of Townsend, MT
O: 29OCT2001 21:42:08 46.3N 111.3W ML=1.0 MBMG 15 km NE of Townsend, MT O: 27OCT2001 04:21:36 47.0N 113.0W ML=1.3 MBMG near Ovando, MT
O: 27OCT2001 08:55:30 47.1N 113.2W ML=1.2 MBMG 15 km E of Ovando, MT
O: 29OCT2001 10:10:19 47.2N 113.3W ML=1.3 MBMG 10 km NE of Seeley Lake, MT
O: 30OCT2001 22:23:15 47.3N 112.9W ML=1.2 MBMG 40 km W of Augusta, MT
O: 28OCT2001 21:31:05 47.4N 112.7W ML=1.1 MBMG 20 km W of Augusta, MT O: 24OCT2001 00:08:39 47.6N 113.7W ML=1.1 MBMG 12 km N of Condon, MT
O: 23OCT2001 12:38:54 47.9N 113.8W ML=1.0 MBMG near Swan Lake, MT O: 26OCT2001 09:45:52 47.8N 112.9W ML=1.3 MBMG 45 km W of Choteau, MT
EASTERN U.S./CANADA
O: 29OCT2001 21:38:37 47.7N 70.1W MN=1.7 GSC CHARLEVOIX SEISMIC ZONE, QUE.
O: 27OCT2001 15:49:29 47.6N 70.2W MN=1.6 GSC CHARLEVOIX SEISMIC ZONE, QUE. O: 29OCT2001 12:33:54 50.0N 65.1W MN=2.0 GSC 95 km E from Sept-Iles, Que. O: 29OCT2001 09:35:07 46.0N 75.2W MN=1.7 GSC 45 km N from BUCKINGHAM, QUE O: 27OCT2001 17:07:49 46.9N 76.2W MN=2.2 GSC 63 km N from Maniwaki, Que. O: 26OCT2001 21:33:58 48.4N 71.3W MN=2.4 GSC 23 km SE from ALMA, QUE.
ALASKA
O: 31Oct2001 22:47:06 62.0N 151.2W ML>3.0 NEIS CENTRAL ALASKA
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