Minor earthquake: M3 quake has struck near Brenas in Puerto Rico

A minor earthquake magnitude 3 (ml/mb) has occurred on Friday, 111 km N of Brenas, Puerto Rico (69 miles). Event ids that are associated to the earthquake: pr15212010. Id of event: pr15212010. Exact location of event, longitude -66.3305 West, latitude 19.478 North, depth = 17 km. The 3-magnitude earthquake has occurred at 04:11:36 / 4:11 am (local time epicenter). The epicenter of the earthquake was roughly 17 km (11 miles) below the earth’s surface. Global time and date of event 31/07/15 / 2015-07-31 08:11:36 / July 31, 2015 @ 8:11 am UTC/GMT.

In the past 24 hours, there have been eight, in the last 10 days fifty-eight, in the past 30 days eighty-three and in the last 365 days two hundred and ninety-three earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 111 km N of Brenas, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

Brenas Puerto Rico

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Parameter	Value	Description
Magnitude	3 mb	The magnitude for the event.
Longitude	-66.3305° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.478° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	17 km	Depth of the event in kilometers.
Place	111km N of Brenas, 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	2015-07-31 08:11:36	Time when the event occurred. UTC/GMT
Updated	2015-07-31 12:49:58	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	138	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	7	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.01329964	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.28 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	298.8	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	pr15212010	Id of event.
Event Code	15212010	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr15212010,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3 quake has struck near Brenas in Puerto Rico

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