Magnitude
5.5
Date-Time
Tuesday, February 08, 2011 at 16:42:46 UTC
Wednesday, February 09, 2011 at 02:42:46 AM at epicenter
Location
27.296°N, 143.158°E
Depth
49.3 km (30.6 miles)
Region
BONIN ISLANDS, JAPAN REGION
Distances
95 km (60 miles) ENE of Chichi-shima, Bonin Islands, Japan
335 km (205 miles) NNE of Iwo Jima, Volcano Islands, Japan
990 km (610 miles) SSE of TOKYO, Japan
Location Uncertainty
horizontal +/- 14.6 km (9.1 miles); depth +/- 2.1 km (1.3 miles)
Parameters
NST=239, Nph=258, Dmin=99.1 km, Rmss=1.18 sec, Gp= 86°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=8
Source
USGS NEIC (WDCS-D)
Event ID
usb0001am4


David Cottle

UBB Owner & Administrator