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Minor earthquake, 3 mag strikes near San Antonio in Puerto Rico


Earthquake location 18.8167S, -67.3769WA minor earthquake magnitude 3 (ml/mb) has occurred on Monday, 46 kilometers (29 miles) from San Antonio in Puerto Rico. Exact time and date of earthquake 05/12/16 / 2016-12-05 10:31:56 / December 5, 2016 @ 10:31 am UTC/GMT. The earthquake was roughly at a depth of 8 km (5 miles). The temblor was detected at 06:31:56 / 6:31 am (local time epicenter). Event ids that are associated to the earthquake: pr16340012. Id of event: pr16340012. Exact location, longitude -67.3769° West, latitude 18.8167° North, depth = 8 km.

Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was Lares, Las Marías, Mayagüez (min 5000 pop). Epicenter of the event was 73 km (45 miles) from Mayagüez (c. 78 600 pop), 49 km (31 miles) from Aguadilla (c. 16 100 pop), 51 km (32 miles) from Isabela (c. 12 500 pop), 67 km (42 miles) from San Sebastián (c. 11 600 pop), 78 km (49 miles) from Lares (c. 7 200 pop).

There are an estimated 130,000 minor quakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days nine, in the past 30 days seventeen and in the last 365 days two hundred and thirty-one earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 46 km NW of San Antonio, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -67.3769° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8167° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 km Depth of the event in kilometers.
Place 46km 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 2016-12-05 10:31:56 Time when the event occurred. UTC/GMT
Updated 2016-12-05 12:52:54 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 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.42849639 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 291.6 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 pr16340012 Id of event.
Event Code 16340012 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16340012, A comma-separated list of event ids that are associated to an event.

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