A moderate earthquake occurred at 8:04:54 PM (PDT) on Tuesday, October 30, 2007. The magnitude 5.6 event occurred 8 km (5 miles) NNE of Alum Rock, CA. The hypocentral depth is 9 km ( 6 miles).
Details: *Magnitude: 5.6 - regional moment magnitude (Mw) *Time: Tuesday, October 30, 2007 at 8:04:54 PM (PDT)/Wednesday, October 31, 2007 at 3:04:54 (UTC) *Distance from Alum **Rock, CA - 8 km (5 miles) NNE (31 degrees) **Milpitas, CA - 11 km (7 miles) E (91 degrees) **San Jose City Hall, CA - 15 km (9 miles) NE (45 degrees) **Sunol-Midtown, CA - 17 km (10 miles) NE (45 degrees)
*Coordinates 37 deg. 25.9 min. N (37.432N), 121 deg. 46.5 min. W (121.776W) *Depth 9.2 km (5.7 miles) *Location Quality Excellent *Location Quality Parameters Nst250, Nph250, Dmin3 km, Rmss0.07 sec, Erho0.1 km, Erzz0.3 km, Gp=32.4 degrees
Reference: USGS
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