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Minor earthquake, 2.81 mag strikes near Guánica in Puerto Rico


Earthquake location 17.8408S, -66.8853WA minor earthquake magnitude 2.81 (ml/mb) has struck on Tuesday, 14 kilometers (9 miles) from Guánica in Puerto Rico. Exact location, longitude -66.8853° West, latitude 17.8408° North, depth = 12 km. Global date and time of event UTC/GMT: 28/07/20 / 2020-07-28 07:33:38 / July 28, 2020 @ 7:33 am. The epicenter was at a depth of 12 km (7 miles). All ids that are associated to the event: pr2020210009. Unique identifier: pr2020210009. The temblor was reported at 07:33:38 / 7:33 am (local time epicenter).

Epicenter of the event was 34 km (21 miles) from Ponce (c. 152 600 pop), 48 km (30 miles) from Mayagüez (c. 78 600 pop), 72 km (45 miles) from Arecibo (c. 49 300 pop), 77 km (48 miles) from Barceloneta (c. 22 300 pop), 22 km (14 miles) from Yauco (c. 20 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Barceloneta, Isabela, Morovis. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been thirty-nine, in the last 10 days eighty, in the past 30 days two hundred and eighty-eight and in the last 365 days two thousand, five hundred and twenty-seven earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor quakes in the world.

Did you feel it?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 14 km S of Guánica, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -66.8853° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8408° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 14 km S of Guánica, 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 2020-07-28 07:33:38 Time when the event occurred. UTC/GMT
Updated 2020-08-08 19:52:55 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 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 21 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1344 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 256 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 pr2020210009 Id of event.
Event Code 2020210009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020210009, A comma-separated list of event ids that are associated to an event.

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