Earthquake: M 2.8 quake strikes near San Antonio in Puerto Rico

A minor earthquake magnitude 2.8 (mg/mb) has striked on Tuesday, 39 kilometers (24 miles) from San Antonio in Puerto Rico. The temblor was reported at 02:04:24 / 2:04 am (local time epicenter) at a depth of 7 km (4 miles). Global time of event 21/04/15 / 2015-04-21 06:04:24 / April 21, 2015 @ 6:04 am UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -67.3526 West, latitude 18.7541 North, depth 7 km, unique identifier, pr15111001.

Close countries, Puerto Rico (c. 3 917 000 pop). The epicenter was 65 km (41 miles) from Mayagüez (c. 78 600 pop), 74 km (46 miles) from Arecibo (c. 49 300 pop), 42 km (26 miles) from Aguadilla (c. 16 100 pop), 45 km (28 miles) from Isabela (c. 12 500 pop), 72 km (45 miles) from Hormigueros (c. 11 900 pop). Nearest city, towns to epicentrum/hypocenter was Maricao, Arecibo, Hormigueros.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 39 km NW of San Antonio, Puerto Rico.

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Parameter	Value	Description
Magnitude	2.8 mb	The magnitude for the event.
Longitude	-67.3526° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.7541° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	7 km	Depth of the event in kilometers.
Place	39km NW of San Antonio, Puerto Rico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-04-21 06:04:24	Time when the event occurred. UTC/GMT
Updated	2015-04-21 06:27:02	Time when the event was most recently updated. UTC/GMT
Timezone offset	-240	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	REVIEWED	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	121	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	pr	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,pr,	A comma-separated list of network contributors.
Number of Stations Used	10	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.36561432	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.12 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	309.6	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	Md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	pr15111001	Id of event.
Event Code	15111001	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr15111001,	A comma-separated list of event ids that are associated to an event.

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Earthquake: M 2.8 quake strikes near San Antonio in Puerto Rico

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