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Minor earthquake 2.99 mag, 9 km SSE of Guanica, Puerto Rico


Earthquake location 17.8951S, -66.8626WA minor earthquake with magnitude 2.99 (ml/mb) was detected on Thursday, 9 kilometers (6 miles) from Guanica in Puerto Rico. Exact location of earthquake, longitude -66.8626 West, latitude 17.8951 North, depth = 10 km. The temblor was reported at 21:49:28 / 9:49 pm (local time epicenter). The epicenter was at a depth of 10 km (6 miles). Unique identifier: pr2020052002. Ids that are associated to the event: pr2020052002. Exact time and date of event in UTC/GMT: 21/02/20 / 2020-02-21 01:49:28 / February 21, 2020 @ 1:49 am.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the earthquake was 29 km (18 miles) from Ponce (c. 152 600 pop), 45 km (28 miles) from Mayagüez (c. 78 600 pop), 66 km (41 miles) from Arecibo (c. 49 300 pop), 71 km (44 miles) from Barceloneta (c. 22 300 pop), 16 km (10 miles) from Yauco (c. 20 300 pop). Nearest cities/city/villages to epicentrum/hypocenter was Cayey, Comerío, Corozal (min 5000 pop).

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been twelve, in the last 10 days ninety-four, in the past 30 days four hundred and fifty-five and in the last 365 days one thousand, three hundred and fifty-six earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 9 km SSE of Guanica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.99 mb The magnitude for the event.
Longitude -66.8626° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8951° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 9km SSE of Guanica, 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 2020-02-21 01:49:28 Time when the event occurred. UTC/GMT
Updated 2020-02-21 02:07:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 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 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0817 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 238 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 pr2020052002 Id of event.
Event Code 2020052002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020052002, A comma-separated list of event ids that are associated to an event.

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