M5.1 s south of equator in Sumatra
Posted by chris in suburbia on April 08, 2005 at 18:25:55:

There were 3 quakes posted on NEIC/USGS for south of 1 deg south on or around the Sumatra subduction zone. These are the first "aftershocks" I've seen south of the equator near the last mainshock (the M8.7). This section of subduction zone was probably the most weakened by both the 8.7 and the M9.3 before. So, it bears watching carefully.

I think this area should be instrumented if anyone can get time and money to do it. As I said just after the M8.7, I would be surprised if it took 100 years before this segment fails...it has had since, I think, 1833 to accumulate strain....if 50 mm/yr, that would be 8 or 9 meters...
Chris

Follow Ups:
     ● BRAVO! CHRIS - Petra  07:45:33 - 4/10/2005  (25578)  (0)
     ● Re: M5.1 s south of equator in Sumatra - Don in Hollister  20:22:08 - 4/8/2005  (25557)  (1)
        ● Re: 6.4 south of equator in Sumatra - chris in suburbia  10:03:53 - 4/9/2005  (25559)  (1)
           ● Re: 6.4 south of equator in Sumatra - Petra  12:05:25 - 4/9/2005  (25562)  (2)
              ● Re: 6.4 south of equator in Sumatra - chris in suburbia  14:11:48 - 4/9/2005  (25564)  (2)
                 ● not sure - John Vidale  19:52:32 - 4/9/2005  (25571)  (1)
                    ● Re: not sure - Don in Hollister  20:14:42 - 4/9/2005  (25572)  (1)
                       ● M6.8 thrust in same area - chris in suburbia  08:38:52 - 4/11/2005  (25585)  (0)
                 ● Re: 6.4 south of equator in Sumatra - Petra  15:14:24 - 4/9/2005  (25566)  (1)
                    ● people and great earthquakes - chris in suburbia  15:35:43 - 4/9/2005  (25567)  (1)
                       ● Pacific Northwest/Triple Junction - Petra  01:02:17 - 4/10/2005  (25575)  (0)
              ● Re: 6.4 south of equator in Sumatra - glen  13:11:10 - 4/9/2005  (25563)  (0)