Magnitude 4.4 - OFFSHORE CHIAPAS, MEXICO

2011 September 22 22:50:02 UTC

• Details
• Maps

Earthquake Details

• This event has been reviewed by a seismologist.

Magnitude	4.4
Date-Time	Thursday, September 22, 2011 at 22:50:02 UTC Thursday, September 22, 2011 at 05:50:02 PM at epicenter
Location	15.093°N, 94.106°W
Depth	57.9 km (36.0 miles)
Region	OFFSHORE CHIAPAS, MEXICO
Distances	116 km (72 miles) SSW (198°) from Tonalá, Chiapas, Mexico 116 km (72 miles) SW (235°) from Pijijiapan, Chiapas, Mexico 124 km (77 miles) SSW (201°) from Tonala, Chiapas, Mexico 197 km (123 miles) W (276°) from Tapachula, Chiapas, Mexico 389 km (242 miles) W (278°) from GUATEMALA CITY, Guatemala
Location Uncertainty	horizontal +/- 24.6 km (15.3 miles); depth +/- 11.3 km (7.0 miles)
Parameters	NST= 74, Nph= 75, Dmin=249.4 km, Rmss=0.96 sec, Gp=169°, M-type=body wave magnitude (Mb), Version=5
Source	Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D)