Table 1.  Seismological Data

Agency

Mw

Hypocenter Coordinates

Hypocenter Depth

Strike/Dip/Slip (fault plane)

Reference

USGS

7.6

18.81N 103.89W

9 km

263º/10º/46º

http://neic.usgs.gov/neis/FM/neic_phac_q.html

Harvard

7.4

18.77N 103.89W

32.6 km

305º/17º/103º

http://www.seismology.harvard.edu/

SSN

7.6(1)

18.22N 104.60W

10 km

 

http://www.ssn.unam.mx/Colima030121/index.html

IISEE(2)

7.4

18.62N 104.12W

20

300º/20º/93º

http://iisee.kenken.go.jp/staff/yagi/eq/colima/colima.html

(1) Energy Magnitude, ME  (See Singh and Pacheco 1994)

(2) Fault plane solution by Yagi, IISEE.