Minor earthquake 3.2 mag, 46 km NNW of San Antonio, Puerto Rico

A minor earthquake with magnitude 3.2 (ml/mb) was reported 46 kilometers (29 miles) from San Antonio in Puerto Rico on Tuesday. Exact location, longitude -67.1977° West, latitude 18.9011° North, depth = 8 km. The epicenter of the earthquake was roughly 8 km (5 miles) below the earth’s surface. The temblor was reported at 22:30:28 / 10:30 pm (local time epicenter). Event ids that are associated to the earthquake: pr16244000. Id of event: pr16244000. Exact time and date of earthquake 31/08/16 / 2016-08-31 02:30:28 / August 31, 2016 @ 2:30 am UTC/GMT.

Closest city/cities/towns to epicentrum/hypocenter was Mayagüez, Lares, Las Marías (min 5000 pop). The epicenter was 78 km (49 miles) from Mayagüez (c. 78 600 pop), 70 km (43 miles) from Arecibo (c. 49 300 pop), 53 km (33 miles) from Aguadilla (c. 16 100 pop), 48 km (30 miles) from Isabela (c. 12 500 pop), 66 km (41 miles) from San Sebastián (c. 11 600 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days nineteen and in the last 365 days two hundred and fifty-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 46 km NNW of San Antonio, Puerto Rico.

More information

Parameter	Value	Description
Magnitude	3.2 mb	The magnitude for the event.
Longitude	-67.1977° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.9011° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8 km	Depth of the event in kilometers.
Place	46km NNW 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	2016-08-31 02:30:28	Time when the event occurred. UTC/GMT
Updated	2016-08-31 03:11:32	Time when the event was most recently updated. UTC/GMT
Timezone offset	-240	Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		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	158	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	17	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.43927617	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.44 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	208.8	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	pr16244000	Id of event.
Event Code	16244000	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr16244000,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.2 mag, 46 km NNW of San Antonio, Puerto Rico

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