North Am: 0 - 30 degrees N Latitude

[shy]

The following quakes occured w/i 5 hours of eachother.  Quakes in this region are numerous.  Noteworthy is the increase in size.  (And, as previously posted, recently there have been several Puerto Rico quakes of magnitude 4.7+)

MAP 5.2 2011/12/04 15:35:37    25.991 -111.813  10.0   BAJA CALIFORNIA SUR, MEXICO
MAP 4.9 2011/12/04 10:44:35    19.905 -45.777  9.9   NORTHERN MID-ATLANTIC RIDGE
MAP 5.2 2011/12/04 10:23:54    19.815 -45.734  10.0   NORTHERN MID-ATLANTIC RIDGE

[shy]

MAP 5.2 2011/12/04 15:35:37    25.991 -111.813  10.0   BAJA CALIFORNIA SUR, MEXICO 
MAP 4.2 2011/12/05 07:35:03    14.133 -90.911  72.3   GUATEMALA 
MAP 4.1 2011/12/05 15:57:39    19.279 -107.846  10.0   OFF THE COAST OF JALISCO, MEXICO 
MAP 4.7 2011/12/06 18:18:38    13.224 -52.632  15.2   NORTH ATLANTIC OCEAN
MAP 5.0 2011/12/07 05:13:17    17.663 -93.980  202.6   VERACRUZ, MEXICO

[shy]

Note timing of Mid-Atlantic & Panama area quakes:

MAP 4.1 2011/12/13 22:04:33    19.699 -64.375  16.0   VIRGIN ISLANDS REGION 
MAP 5.3 2011/12/13 07:28:54    28.294 -43.824  10.1   NORTHERN MID-ATLANTIC RIDGE
MAP 5.4 2011/12/13 07:28:11    4.768 -82.570  10.1   SOUTH OF PANAMA

[shy]

 
MAP 4.6 2011/12/20 07:33:55    7.337 -78.605  36.2   PANAMA
MAP 5.0 2011/12/20 01:54:19    14.213 -93.177  45.7   OFF THE COAST OF CHIAPAS, MEXICO
MAP 4.5 2011/12/19 16:57:55    15.602 -94.602  48.1   OFFSHORE OAXACA, MEXICO
MAP 4.6 2011/12/18 13:47:07    7.416 -82.138  10.0   SOUTH OF PANAMA
MAP 4.5 2011/12/18 05:03:19    15.832 -91.976  219.5   CHIAPAS, MEXICO 
MAP 5.3 2011/12/17 06:09:09    18.172 -67.371  17.0   MONA PASSAGE, PUERTO RICO
MAP 5.1 2011/12/17 06:06:12    18.188 -67.370  14.0   MONA PASSAGE, PUERTO RICO
MAP 4.6 2011/12/16 23:16:43    7.254 -77.912  19.1   PANAMA-COLOMBIA BORDER REGION
MAP 4.8 2011/12/16 13:02:24    16.271 -98.176  18.7   OAXACA, MEXICO
MAP 4.9 2011/12/15 13:28:04    13.035 -88.669  60.9   OFFSHORE EL SALVADOR
MAP 4.3 2011/12/15 01:53:03    6.723 -73.030  160.6   NORTHERN COLOMBIA

 

[shy]

MAP 5.0   2012/01/19 06:28:20 18.052 -68.762 82.6 47 km ( 29 mi) SSE of La Romana, Dominican Republic
MAP 4.6  2012/01/14 16:45:06 17.747 -61.602 30.0 26 km ( 16 mi) ENE of Codrington, Antigua & Barbuda 

[shy]

Magnitude 6.2
Saturday, January 21, 2012 at 18:47:15 UTC
Saturday, January 21, 2012 at 12:47:15 PM at epicenter
 
Location 14.959°N, 93.107°W
Depth 66.1 km (41.1 miles)
Region OFFSHORE CHIAPAS, MEXICO
Distances 91 km (56 miles) W of Tapachula, Chiapas, Mexico
143 km (88 miles) SSE of Tonala, Chiapas, Mexico
171 km (106 miles) W of Quetzaltenango, Guatemala
811 km (503 miles) SE of MEXICO CITY, D.F., Mexico
 
Location Uncertainty horizontal +/- 15.8 km (9.8 miles); depth +/- 10.1 km (6.3 miles)
. . . . . . . . . . . . . . . . . .

edited to add:

A magnitude-6.2 earthquake hit off the coast of the southern Mexican state of Chiapas on Saturday, shaking the state from the capital of Tuxtla Gutierrez to Tapachula on the border with Guatemala.

The quake, which hit at 12:47 p.m. local time (1:47 p.m. EST; 18:47 GMT), broke windows in Tuxtla Gutierrez and sent frightened residents into the streets in cities across Chiapas.

There were no initial reports of major damage, but state Civil Protection authorities said they were doing a review throughout the state. . . . .

http://abcnews.go.com/International/wireStory/62-quake-hits-off-coast-southern-mexico-15411238

[shy]

Latitudes all in ascending order via time.  All 4+ magnitude:

MAP 4.6 2012/01/22 00:39:52    30.469 -114.013  10.2   GULF OF CALIFORNIA
MAP 4.4 2012/01/21 20:34:47    18.863 -104.959  19.5   OFFSHORE JALISCO, MEXICO
MAP 4.6 2012/01/21 19:46:51    14.939 -93.106  63.1   OFFSHORE CHIAPAS, MEXICO
MAP 6.3 2012/01/21 18:47:15    14.963 -93.087  79.5   OFFSHORE CHIAPAS, MEXICO

[shy]

 
MAP  5.1   2012/01/23 20:50:15    19.572    -70.073  7.4   DOMINICAN REPUBLIC

[shy]

Scientists: Haiti might see several big quakes.

(AP)  PORT-AU-PRINCE, Haiti - Haiti and the neighboring Dominican Republic could be in for a period of periodic powerful earthquakes, according to a scientific study released Thursday.

The study says Haiti's 7.0-magnitude earthquake two years ago is likely to be the first of several quakes of a similarly powerful magnitude. . . . .

"The 2010 Haiti earthquake may mark the beginning of a new ccle of large earthquakes on the Enriquillo fault system after 240 years of seismic quiescence," lead author William Bakun of the U.S. Geological Survey wrote. "The entire Enriquillo fault system appears to be seismically active; Haiti and the Dominican Republic should prepare for future devastating earthquakes."

The authors document a series of four major earthquakes of magnitude 6.6 and higher that struck Hispaniola, the Caribbean island shared by Haiti and the Dominican Republic. The phase began in 1701, near the site of the 2010 quake, and ended in 1770.

There was no evidence of significant earthquake activity on the Enriquillo fault system in the 240 years from 1770 until the 2010 disaster, except for an earthquake in 1860 that likely occurred offshore, the study said. . . .

The possibility that a newly active period has begun underscores the need for Haiti and the Dominican Republic to focus on building seismic-proof structures, Bakun said.

Moderate quakes have struck the Dominican Republic in recent weeks but there were no reports of damae.

http://www.cbsnews.com/8301-202_162-57367666/scientists-haiti-might-see-several-big-quakes/

[shy]

Magnitude 5.0
Date-Time Sunday, January 29, 2012 at 21:54:20 UTC
Sunday, January 29, 2012 at 06:54:20 PM at epicenter
 
Location 16.627°N, 46.509°W
Depth 10 km (6.2 miles)
Region NORTHERN MID-ATLANTIC RIDGE
Distances 1441 km (895 miles) NNE of CAYENNE, French Guiana
1463 km (909 miles) ENE of BRIDGETOWN, Barbados
1522 km (945 miles) NE of PARAMARIBO, Suriname
2092 km (1299 miles) E of SAN JUAN, Puerto Rico
 . . . . . . . . .

Magnitude 4.1
Date-Time Sunday, January 29, 2012 at 11:33:14 UTC
Sunday, January 29, 2012 at 07:33:14 AM at epicenter
 
Location 14.280°N, 60.246°W
Depth 68.6 km (42.6 miles)
Region MARTINIQUE REGION, WINDWARD ISLANDS
Distances 86 km (53 miles) ENE of CASTRIES, St. Lucia
96 km (59 miles) ESE of FORT-DE-FRANCE, Martinique
147 km (91 miles) NNW of BRIDGETOWN, Barbados
782 km (485 miles) SE of SAN JUAN, Puerto Rico

[shy]

MAP  5.0   2012/02/08 13:06:46    15.050    -94.022  47.7   OFFSHORE CHIAPAS, MEXICO
MAP  5.6   2012/02/08 10:54:43    0.682    -79.187  69.8   NEAR THE COAST OF ECUADOR