Suivi de l'activité sismique - Novembre 2011

[Miguel]

[charles]

Un séisme de magnitude 5,9 dans la région d'Hokkaido tout à l'heure:
http://www.emsc-csem.org/Earthquake/ear ... ?id=245757
Et encore une réplique dans la région de Honshu hier soir de magnitude 6,1:
http://www.emsc-csem.org/Earthquake/ear ... ?id=245687

[Aliane]

Tout nouveau, ça vient de sortir, encore un séisme dans la région d'Oklahoma :

Magnitude 3.2
Date-Time
Sunday, November 27, 2011 at 11:52:26 UTC
Sunday, November 27, 2011 at 05:52:26 AM at epicenter
Location 35.679°N, 97.115°W
Depth 4.9 km (3.0 miles)
Region OKLAHOMA
Distances 36 km (22 miles) SE of Guthrie, Oklahoma
42 km (26 miles) NNW of Shawnee, Oklahoma
44 km (27 miles) ENE of OKLAHOMA CITY, Oklahoma
48 km (29 miles) S of Stillwater, Oklahoma
Location Uncertainty horizontal +/- 6.4 km (4.0 miles); depth +/- 3 km (1.9 miles)
Parameters NST= 39, Nph= 58, Dmin=26.7 km, Rmss=1.26 sec, Gp= 40°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)

http://earthquake.usgs.gov/earthquakes/ ... 006yhg.php

Et depuis ce matin:
This event has been reviewed by a seismologist.

Magnitude 5.4
Date-Time
Sunday, November 27, 2011 at 11:01:05 UTC
Sunday, November 27, 2011 at 06:01:05 PM at epicenter
Location 0.157°N, 97.870°E
Depth 17.9 km (11.1 miles)
Region NIAS REGION, INDONESIA
Distances 192 km (119 miles) SSW of Sibolga, Sumatra, Indonesia
196 km (121 miles) SW of Padangsidempuan, Sumatra, Indonesia
530 km (329 miles) SW of KUALA LUMPUR, Malaysia
1215 km (754 miles) NW of JAKARTA, Java, Indonesia
Location Uncertainty horizontal +/- 12.5 km (7.8 miles); depth +/- 2 km (1.2 miles)
Parameters NST=268, Nph=273, Dmin=303.9 km, Rmss=0.85 sec, Gp= 58°,
M-type=teleseismic moment magnitude (Mw), Version=9
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)