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Minor earthquake 2.8 mag, 11 km SE of Guanica, Puerto Rico


Earthquake location 17.8878S, -66.8396WA minor earthquake magnitude 2.8 (ml/mb) strikes 11 kilometers (7 miles) from Guanica in Puerto Rico on Thursday. The 2.8-magnitude earthquake has occurred at 22:31:29 / 10:31 pm (local time epicenter). The epicenter was at a depth of 14 km (9 miles). Exact location of event, longitude -66.8396 West, latitude 17.8878 North, depth = 14 km. Date and time of earthquake in UTC/GMT: 28/02/20 / 2020-02-28 02:31:29 / February 28, 2020 @ 2:31 am. All ids that are associated to the event: pr2020059013. Unique identifier: pr2020059013.

Epicenter of the event was 28 km (17 miles) from Ponce (c. 152 600 pop), 47 km (29 miles) from Mayagüez (c. 78 600 pop), 66 km (41 miles) from Arecibo (c. 49 300 pop), 70 km (44 miles) from Barceloneta (c. 22 300 pop), 16 km (10 miles) from Yauco (c. 20 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Cayey, Corozal, Comerío. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

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

How would you describe the shaking?

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: 11 km SE of Guanica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.8396° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8878° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14 km Depth of the event in kilometers.
Place 11km SE 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 2020-02-28 02:31:29 Time when the event occurred. UTC/GMT
Updated 2020-02-28 03:21:08 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 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0959 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 240 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 pr2020059013 Id of event.
Event Code 2020059013 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020059013, A comma-separated list of event ids that are associated to an event.

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