Magnitude 7.4 Date-Time Tuesday, December 21, 2010 at 17:19:41 UTC Wednesday, December 22, 2010 at 03:19:41 AM at epicenter Time of Earthquake in other Time Zones Location 26.866°N, 143.739°E Depth 14.9 km (9.3 miles) Region BONIN ISLANDS, JAPAN REGION Distances 155 km (95 miles) E of Chichi-shima, Bonin Islands, Japan 335 km (210 miles) NE of Iwo Jima, Volcano Islands, Japan 1050 km (650 miles) SSE of TOKYO, Japan Location Uncertainty horizontal +/- 13.5 km (8.4 miles); depth +/- 0.2 km (0.1 miles) Parameters NST=377, Nph=377, Dmin=157 km, Rmss=0.84 sec, Gp= 22°, M-type=teleseismic moment magnitude (Mw), Version=A Source USGS NEIC...