Caribbean seismic activity

[alan1961]

Did anyone in the eastern caribbean islands feel this one?





An interesting website providing reports on global activity.
http://earthquake-report.com/

[cycloneye]

alan,I didn't felt that one here in PR.

[GCANE]

Rapid-fire swarm just about all in the same place, 60 miles NE of San Juan.

Mw 2.8 to 3.3

Some pretty shallow, 3.9 to 38.6 km depth




http://earthquake.usgs.gov/earthquakes/ ... 65_eqs.php

[cycloneye]

A moderate quake occured this evening NNE of San Juan.

Magnitude 4.1
Date-Time Sunday, July 10, 2011 at 01:13:39 UTC
Saturday, July 09, 2011 at 09:13:39 PM at epicenter

Location 19.477°N, 65.333°W
Depth 6.4 km (4.0 miles)
Region PUERTO RICO REGION
Distances 128 km (80 miles) NNE (24°) from Vieques, PR
128 km (80 miles) NNE (25°) from Su�rez, PR
129 km (80 miles) NNE (18°) from Luquillo, PR
132 km (82 miles) NNW (342°) from CHARLOTTE AMALIE, US Virgin Islands
137 km (85 miles) NNE (29°) from Carolina, PR

Location Uncertainty horizontal +/- 2 km (1.2 miles); depth +/- 2 km (1.2 miles)
Parameters NST= 15, Nph= 15, Dmin=130.8 km, Rmss=0.28 sec, Gp=227°,
M-type=duration magnitude (Md), Version=0

[dixiebreeze]

Yikes!

[cycloneye]

Yikes!

But no worries as nothing bad happened here.

[alan1961]

Virgin islands looks to be a little active again with
a swarm of minor quakes last night and through
the early hours of this morning.

[vbhoutex]

I wonder if anyone ever feels these? I never see anyone say anything about them except to post the reports.

[cycloneye]

I wonder if anyone ever feels these? I never see anyone say anything about them except to post the reports.

The vast majority of them are small quakes that people have not felt in the region.But some of the stronger ones have been gelt including myself.The last one that I felt was on Christmas eve night,that was a 5.1 quake.

[cycloneye]

A 4.6 quake NW of Puerto Rico.

Magnitude 4.6
Date-Time Thursday, July 28, 2011 at 20:34:40 UTC
Thursday, July 28, 2011 at 04:34:40 PM at epicenter

Location 19.025°N, 67.927°W
Depth 10.4 km (6.5 miles) (poorly constrained)
Region DOMINICAN REPUBLIC REGION
Distances 94 km (58 miles) ENE (61°) from Higüey, La Altagracia, Dominican Republic
104 km (65 miles) NW (317°) from Rincón, PR
105 km (65 miles) NW (308°) from Cabán, PR
128 km (80 miles) ENE (59°) from La Romana, La Romana, Dominican Republic
198 km (123 miles) WNW (288°) from SAN JUAN, Puerto Rico

Location Uncertainty horizontal +/- 15.8 km (9.8 miles); depth +/- 22.6 km (14.0 miles)

[alan1961]

Was wondering if you felt this Cycloneye?

[cycloneye]

Alan,this one I didn't felt in San Juan,but many in the Western part of PR felt it.

[alan1961]

Ok cycloneye, thanks for your reply

[GCANE]

Saw this interesting blog on the latest swarm NW of PR


http://www.earthquakesummary.info/

MODERATE EARTHQUAKES SHAKE ANCHORAGE, ALASKA AND DOMINICAN REPUBLIC

EARTHQUAKE SUMMARY FOR JULY 28, 2011



A moderate earthquake of M 4.6 was preceded by a foreshock of M 4.0 in the Dominican Republic area today.

Two earthquakes of larger magnitude have hit the region in the past year - an M 5.4 on March 16, 2011 and an M 5.5 four months earlier on November 13, 2010.

The four month interval between these events was continued with today's earthquake.

We believe this epicenter is near the likely rupture point of the coming great earthquake on the Puerto Rico Trench.

This event could occur this year, most likely in connection with a strong retroactive moving hurricane and a strong geomagnetic storm.

Such an event would likely trigger a major tsunami which could cause considerable destruction in the northern Caribbean and possibly along the U.S. Gulf Coast region.

Today's activity occurs following the passage of Tropical Storm Don through the region two days ago.

At the time we suggested the possibility of such a series of earthquakes associated with this tropical storm as follows.

[cycloneye]

A 5.0 quake occured near St Lucia.

[Gustywind]

A 5.0 quake occured near St Lucia.

Here is a report from our friend of St Lucia: Chritopher Jenkins
http://stormcarib.com/reports/current/stlucia.shtml

If it's not one thing, it's another!

•By Christopher Jenkins <chrissjuk at aol.com>
•Date: Sun, 7 Aug 2011 00:49:58 -0400

Well, the weather is ok but just as I was thinking of drifting off to sleep, we had an earthquake - 5.1, small beer maybe but the strongest here for a while. It was actually off island, maybe 40 miles away but not too deep so strong enough for us to shake, rattle and roll. Reactions range from slight to strong on the MMI scale - 3 to 5.


Chris Jenkins
http://www.facebook.com/zaravillas

[alan1961]

4.5 quake near Barbados.

[cycloneye]

[msbee]

Preliminary data here

http://geofon.gfz-potsdam.de/db/event.p ... fz2011qlal

[msbee]

http://www.emsc-csem.org/Earthquake/ear ... ?id=233104