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Minor earthquake: M3.13 quake has struck near Magas Arriba in Puerto Rico


Earthquake location 18.026S, -66.7738WA minor earthquake with magnitude 3.13 (ml/mb) was detected on Thursday, 1 kilometers (1 miles) from Magas Arriba in Puerto Rico. Event ids that are associated to the earthquake: pr2020352010. Id of event: pr2020352010. Global date and time of event UTC/GMT: 17/12/20 / 2020-12-17 20:38:24 / December 17, 2020 @ 8:38 pm. Exact location of earthquake, -66.7738° West, 18.026° North, depth 12 km. The temblor was detected at 20:38:24 / 8:38 pm (local time epicenter). The earthquake occurred at a depth of 12 km (7 miles).

Closest city/cities/towns to epicentrum/hypocenter was Patillas, Caguas, Guaynabo (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 77 km (48 miles) from Bayamón (c. 203 500 pop), 17 km (11 miles) from Ponce (c. 152 600 pop), 80 km (50 miles) from Caguas (c. 86 800 pop), 79 km (49 miles) from Guaynabo (c. 81 400 pop), 43 km (27 miles) from Mayagüez (c. 78 600 pop).

In the past 24 hours, there have been one, in the last 10 days twenty, in the past 30 days fifty-three and in the last 365 days two thousand, eight hundred and thirty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year.

Did you feel the quake?

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. 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: 1 km NNW of Magas Arriba, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.13 mb The magnitude for the event.
Longitude -66.7738° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.026° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 1 km NNW of Magas Arriba, 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 2020-12-17 20:38:24 Time when the event occurred. UTC/GMT
Updated 2020-12-17 21:27:48 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 151 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 19 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1684 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 94 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 pr2020352010 Id of event.
Event Code 2020352010 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020352010, A comma-separated list of event ids that are associated to an event.

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