A moderate earthquake with Ms 6.1(GSSC), Ml 6.5 (SSN) Ms 6.32(NEIC) occurred off the
coast of the Mexican state of Jalisco or Colima on May 19 (May 20 UT).
This is the largest eathquake in western Mexico since August 9, 2000
when a Ms 6.5 occurred SE of this location. There have been 125 earhquakes
in Mexico between 110W and 100W since 1-1-1900, an average of
about 1.25 per year. This is the largest event in the region of
it's epicenter since an earthquake of Ms 6.4 occurred nearby on
Dec. 12, 1995. That earthquake did little damage to local structures.
Local data available at:
http://www.ssn.unam.mx/~yi/SSN/ssn-ultimos.html
See link at top of page for NEIS data.
Current Parameters of this event:

19MAY2001 23:21:43 18.7N 104.2W MS=6.3 NEIC NEAR COAST OF JALISCO, MEXICO