MARIANA ISLANDS RECENT QUAKES

4.9 Mb - PAGAN REG., N. MARIANA ISLANDS
Preliminary Earthquake Report
Magnitude
4.9 Mb
Date-Time
17 Sep 2008 21:32:05 UTC
18 Sep 2008 07:32:05 near epicenter
17 Sep 2008 15:32:05 standard time in your timezone
Location
18.519N 145.668E
Depth
203 km
Distances
44 km (28 miles) NNW (346 degrees) of Pagan, Northern Mariana Islands
369 km (229 miles) N (359 degrees) of SAIPAN, Northern Mariana Islands
1964 km (1220 miles) SSE (154 degrees) of Hamamatsu, Honshu, Japan
Location Uncertainty
Horizontal: 8.8 km; Vertical 3.6 km
Parameters
Nph = 113; Dmin = 552.1 km; Rmss = 0.57 seconds; Gp = 79°M-type = Mb; Version = 6
Event ID
US 2008xbb5

5.0 Mb - ALAMAGAN REG, N. MARIANA ISLANDS
Preliminary Earthquake Report
Magnitude
5.0 Mb
Date-Time
28 Aug 2008 08:17:33 UTC
28 Aug 2008 18:17:33 near epicenter
28 Aug 2008 02:17:33 standard time in your timezone
Location
17.569N 145.633E
Depth
222 km
Distances
64 km (40 miles) SSW (193 degrees) of Pagan, Northern Mariana Islands
264 km (164 miles) N (358 degrees) of SAIPAN, Northern Mariana Islands
466 km (289 miles) NNE (12 degrees) of HAGATNA, Guam
2061 km (1281 miles) SSE (156 degrees) of Hamamatsu, Honshu, Japan
Location Uncertainty
Horizontal: 9.1 km; Vertical
Parameters
Nph = 58; Dmin = 448.0 km; Rmss = 0.88 seconds; Gp = 100°M-type = Mb; Version = 7
Event ID
US 2008wgbm
For updates, maps, and technical information, see: Event Page or U.S.G.S. Earthquake Hazards Program
National Earthquake Information CenterU.S. Geological Surveyhttp://neic.usgs.gov/

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