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Minor earthquake, 2.81 mag strikes near San Antonio in Puerto Rico


Earthquake location 18.9638S, -67.1596WA minor earthquake magnitude 2.81 (ml/mb) has struck on Thursday, 52 kilometers (32 miles) from San Antonio in Puerto Rico. The epicenter of the earthquake was roughly 4 km (2 miles) below the earth’s surface. Event ids that are associated to the earthquake: pr2019347002. Id of event: pr2019347002. Exact location of event, depth 4 km, -67.1596° West, 18.9638° North. The 2.81-magnitude earthquake was detected at 21:19:35 / 9:19 pm (local time epicenter). Exact time and date of event in UTC/GMT: 13/12/19 / 2019-12-13 01:19:35 / December 13, 2019 @ 1:19 am.

Earthquake epicenter was 72 km (45 miles) from Arecibo (c. 49 300 pop), 60 km (37 miles) from Aguadilla (c. 16 100 pop), 53 km (33 miles) from Isabela (c. 12 500 pop), 72 km (45 miles) from San Sebastián (c. 11 600 pop), 76 km (47 miles) from Añasco (c. 6 100 pop). Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Añasco, San Sebastián, Arecibo.

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days thirty-four, in the past 30 days one hundred and in the last 365 days seven hundred and seventy-three earthquakes of magnitude 3.0 or greater that have been detected nearby. Every year there are an estimated 1,300,000 minor earthquakes in the world.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 52 km N of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -67.1596° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9638° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4 km Depth of the event in kilometers.
Place 52km N 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 2019-12-13 01:19:35 Time when the event occurred. UTC/GMT
Updated 2019-12-13 06:42:43 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 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 7 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4987 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.47 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 224 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 pr2019347002 Id of event.
Event Code 2019347002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019347002, A comma-separated list of event ids that are associated to an event.

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