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30 May 2012 description

Seventy percent of the Gulf of Mexico shoreline is vulnerable to extreme erosion during even the weakest hurricanes, according to a new report by the U.S. Geological Survey released just prior to the start of the 2012 hurricane season.

USGS scientists used state-of-the-art modeling to determine the probabilities of erosion, overwash and inundation during direct hurricane landfall for sandy beaches along the entire U.S. Gulf Coast shoreline.

11 Jan 2011 description

Released: 1/11/2011 12:44:35 PM

Contact Information:

U.S. Department of the Interior, U.S.
Geological Survey
Office of Communication
119 National Center
Reston, VA 20192

Heidi Koontz
Phone: 303-202-4763

Clarice Nassif Ransom

04 Apr 2010 description

Earthquake Details

Magnitude 7.2

Date-Time: Sunday, April 04, 2010 at 22:40:41 UTC
Sunday, April 04, 2010 at 03:40:41 PM at epicenter
Time of Earthquake in other Time Zones

Location: 32.128=B0N, 115.303=B0W

Depth: 10 km (6.2 miles) set by location program


Distances: 26 km (16 miles) SW (225=B0) from Guadalupe Victoria, Baja California, Mexico
60 km (38 miles) SSE (165=B0) from Mexicali, Baja California, Mexico

04 Apr 2010 description

Resumen Tectónico

El terremoto del norte de Baja California del domingo 4 de abril de 2010, de magnitud 7.2, ocurrió aproximadamente 40 millas al sur de la frontera entre México y EE.UU., a escasa profundidad y a lo largo del límite principal entre las placas de Norteamérica y el Pacífico. ésta es un área con un elevado nivel de sismicidad, tanto histórica como reciente, aunque éste es el mayor evento acaecido en la región desde 1892.

22 Jan 2003 description

Magnitude 7.8 near Tecomán, Colima, Mexico
Wednesday, January 22, 2003 at 2:06:35 (UTC)

Magnitude: 7.8

Time: Wednesday, January 22, 2003 at 2:06:35 (UTC)

Distance from:
13 km (8 miles) S (183 degrees) of Tecomán, Colima, Mexico
16 km (10 miles) SSE (147 degrees) of Armería, Colima, Mexico
45 km (28 miles) SSW (192 degrees) of Coquimatlán, Colima, Mexico
51 km (32 miles) SSW (199 degrees) of Colima, Colima, Mexico

18 deg. 48.4 min. N (18.807N)

21 Jan 2003 description

Date-Time  2003 01 22 02:06:31 UTC    
Location  18.73N 103.84W  
Depth  10.0 kilometers  
Magnitude  7.8  
Reference  35 miles (60 km) SSW of Colima, Colima, Mexico
35 miles (60 km) ESE of Manzanillo, Colima, Mexico
70 miles (110 km) SSW of Ciudad Guzman, Jalisco, Mexico
310 miles (500 km) W of MEXICO CITY, D.F., Mexico
Source  USGS National Earthquake Information Center.

30 Sep 1999 description

99/09/30 16:31:13 16.15N 96.71W 33.0 7.5Ms - OAXACA, MEXICO

The following is a release by the United States Geological Survey, National Earthquake Information Center: A major earthquake occurred NEAR THE COAST OF OAXACA, MEXICO about 35 miles (60 km) north-northwest of Puerto Angel or about 275 miles (440 km) southeast of Mexico City at 10:31 AM MDT, Sep 30, 1999 (11:31 AM CDT in Mexico). A PRELIMINARY MAGNITUDE OF 7.5 WAS COMPUTED FOR THIS EARTHQUAKE. The magnitude and location may change slightly as additional data are received from other seismograph stations.

29 Jan 1997 description

Topinka, USGS/CVO, 1996; basemap modified from: CIA 1997; volcanoes from Simkin & Siebert, 1994