Minor earthquake 3.3 mag, 120 km N of San Juan, Puerto Rico

A minor earthquake magnitude 3.3 (ml/mb) has struck on Thursday, 120 km N of San Juan, Puerto Rico (75 miles). Exact location of event, longitude -66.2256 West, latitude 19.5531 North, depth = 50 km. The epicenter of the earthquake was roughly 50 km (31 miles) below the earth’s surface. The temblor was detected at 20:27:56 / 8:27 pm (local time epicenter). Id of earthquake: pr15212000. Event ids that are associated: pr15212000. Global date and time of event UTC/GMT: 31/07/15 / 2015-07-31 00:27:56 / July 31, 2015 @ 12:27 am.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been twelve, in the last 10 days fifty-seven, in the past 30 days eighty-one and in the last 365 days two hundred and ninety earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor earthquakes in the world each year.

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 120 km N of San Juan, Puerto Rico.

Puerto Rico San Juan

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-66.2256° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.5531° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	50 km	Depth of the event in kilometers.
Place	120km N of San Juan, 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 00:27:56	Time when the event occurred. UTC/GMT
Updated	2015-07-31 01:21:21	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	168	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	13	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.10762275	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.3 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	277.2	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	pr15212000	Id of event.
Event Code	15212000	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr15212000,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.3 mag, 120 km N of San Juan, Puerto Rico

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