MSNBC says that both Reuters and AP are reporting that a major earthquake has rocked Mexico City’s skyscrapers.
USGS
Earthquake Details
Magnitude 6.0
Date-Time Monday, April 27, 2009 at 16:46:31 UTC
Monday, April 27, 2009 at 11:46:31 AM at epicenter
Time of Earthquake in other Time Zones
Location 17.322°N, 99.326°W
Depth 41.2 km (25.6 miles)
Region GUERRERO, MEXICO
Distances 30 km (20 miles) SE of Chilpancingo, Guerrero, Mexico
80 km (50 miles) NE of Acapulco, Guerrero, Mexico
115 km (70 miles) S of Iguala, Guerrero, Mexico
230 km (145 miles) S of MEXICO CITY, D.F., Mexico
Location Uncertainty horizontal +/- 7 km (4.3 miles); depth +/- 11.4 km (7.1 miles)
Parameters NST=168, Nph=168, Dmin=>999 km, Rmss=0.86 sec, Gp=166°,
M-type=teleseismic moment magnitude (Mw), Version=6
Source USGS NEIC (WDCS-D)
Event ID us2009fya9
This event has been reviewed by a seismologist.