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Minor earthquake: M3.09 quake has struck near Ponce in Puerto Rico


Earthquake location 17.9088S, -66.6085WA minor earthquake with magnitude 3.09 (ml/mb) was reported 11 kilometers (7 miles) from Ponce in Puerto Rico on Thursday. Event id: pr2020142008. Ids that are associated to the earthquake: pr2020142008. Exact location of event, longitude -66.6085 West, latitude 17.9088 North, depth = 3 km. The epicenter was at a depth of 3 km (2 miles). The temblor was reported at 04:39:01 / 4:39 am (local time epicenter). Global date and time of event UTC/GMT: 21/05/20 / 2020-05-21 08:39:01 / May 21, 2020 @ 8:39 am.

Epicenter of the event was 72 km (45 miles) from Bayamón (c. 203 500 pop), 11 km (7 miles) from Ponce (c. 152 600 pop), 69 km (43 miles) from Caguas (c. 86 800 pop), 72 km (45 miles) from Guaynabo (c. 81 400 pop), 65 km (40 miles) from Mayagüez (c. 78 600 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Isabela, Yabucoa, Cataño. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

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

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 11 km S of Ponce, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.09 mb The magnitude for the event.
Longitude -66.6085° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9088° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3 km Depth of the event in kilometers.
Place 11km S of Ponce, 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 2020-05-21 08:39:01 Time when the event occurred. UTC/GMT
Updated 2020-05-21 09:06:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 147 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.134 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 196 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 pr2020142008 Id of event.
Event Code 2020142008 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020142008, A comma-separated list of event ids that are associated to an event.

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