Phase Data
16 JUL 2010 (197) ot = 09:04:47.44 +/- 0.64 POTOMAC-SHENANDOAH REGION lat = 39.167 +/- 7.7 lon = -77.252 +/- 8.3 MAGNITUDE 3.6 (GS) dep = 5.0 (geophysicist) 15 km (10 miles) NW of Rockville, Maryland (pop 47,000) 30 km (15 miles) ENE of Leesburg, Virginia (pop 16,000) 35 km (20 miles) NW of WASHINGTON, D.C. (pop 572,000) 70 km (45 miles) WNW of ANNAPOLIS, Maryland (pop 35,000) mbLg 3.6 (GS). nph = 15 of 26 se = 1.49 FE=492 A error ellipse = (131.5, 0.0, 13.3; 41.5, 0.0, 6.8; 0.0, 0.0, 0.0) mb = 0.0 ( 0) ML = 0.0 ( 0) mblg = 3.6 ( 10) md = 0.0 ( 0) MS = 0.0 ( 0) sta phase arrival res dist azm amp per mag amp per mag sta SDMD ePg 09:04:56.30 1.1 0.4 53 SDMD eSg 09:05:01.96 S res = 1.5X CBN ePg 09:05:06.31 0.4 1.0 186 CBN eSg 09:05:20.51 S res = 2.0X SSPA ePn 09:05:13.88 -1.8 1.5 342 SSPA eSn 09:05:32.76 S res = -3.3X JSRW ePn 09:05:14.52 -1.2 1.6 199 JSRW eSn 09:05:34.62 S res = -1.5X VWCC ePn 09:05:33.17 -0.8 2.9 229 VWCC eSn 09:06:06.77 S res = -2.2X BLA ePn 09:05:37.28 -0.7 3.2 233 d:1.7+1 0.1X g:7.6-2 .88 3.1 BLA eSn 09:06:21.77 S res = 5.6X TRY ePn 09:05:56.02 0.1 4.5 36 d:2.1+2 3.2X g:1.5-1 .73 3.7 TRY qSn 09:06:48.35 S res = 0.0X ACSO ePn 09:05:57.75 0.9 4.5 285 d:2.5+2 3.4X g:9.9-2 .65 3.6 ACSO eSn 09:06:52.83 S res = 2.7X QUA2 ePn 09:06:01.76 0.7 4.8 49 d:1.8+2 3.0X g:1.1-1 .73 3.6 QUA2 eSn 09:07:06.79 S res = 9.2X ACCN ePn 09:06:02.39 -0.8 5.0 31 d:2.2+2 3.2X g:1.7-1 .73 3.8 ACCN eSn 09:07:07.27 S res = 5.9X b:2.2+1 .38 5.1X NCB ePn 09:06:03.95 -3.4X 5.3 24 d:2.6+2 3.4X g:1.0-1 .73 3.7 NCB b:1.5+1 .35 5.1X MDV ePn 09:06:11.36 -1.5 5.7 31 d:3.4+2 3.8X g:8.5+2 .68 7.7X MDV b:1.1+5 .26 9.1X LONY ePn 09:06:12.33 -1.8 5.8 19 d:2.1+2 3.2X g:8.5-2 .63 3.7 LONY b:8.7+0 .53 4.7X HNH ePn 09:06:17.60 2.5 5.9 38 d:2.2+2 3.2X g:1.0-1 .65 3.8 HNH b:9.6+0 .43 4.8X BLO ePn 09:06:33.87 0.5 7.2 273 d:3.0+1 0.8X g:1.1-2 .75 2.9 BLO b:1.5+1 .45 5.5X OLIL ePn 09:06:53.05 2.4 8.5 270 d:3.4+1 0.9X g:1.3-2 .65 3.1 OLIL b:1.3+1 .38 5.6X Generated 2010 JUL 16 at 09:21 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver