US: Colorado - Earthquake Magnitude 4.6, followed by Magnitude 5.3 - numerous aftershocks

US Geological Survey
Tue, 23 Aug 2011 08:45 UTC

© USGS

Date-Time:
Tuesday, August 23, 2011 at 05:46:19 UTC

Monday, August 22, 2011 at 11:46:19 PM at epicenter

Time of Earthquake in other Time Zones

Location:
37.070°N, 104.700°W

Depth:
4 km (2.5 miles)

Region:
COLORADO

Distances:
15 km (9 miles) WSW of Trinidad, Colorado

33 km (20 miles) NW of Raton, New Mexico

54 km (33 miles) S of Walsenburg, Colorado

290 km (180 miles) S of DENVER, Colorado

Location Uncertainty:
horizontal +/- 12.5 km (7.8 miles); depth +/- 2.8 km (1.7 miles)

Parameters:
NST=372, Nph=372, Dmin=18.9 km, Rmss=1.25 sec, Gp= 14°, M-type=centroid moment magnitude (Mw), Version=A

Source:
Magnitude: USGS NEIC (WDCS-D)

Location:
USGS NEIC (WDCS-D)

Event ID:
usc0005idz

Click here to see list of aftershocks