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Minor earthquake 3.04 mag, 1 km ENE of Guayanilla, Puerto Rico


Earthquake location 18.0448S, -66.8003WA minor earthquake magnitude 3.04 (ml/mb) has struck on Thursday, 1 kilometers (1 miles) from Guayanilla in Puerto Rico. Id of earthquake: pr2020058013. Event ids that are associated: pr2020058013, us6000855p. Global date and time of event UTC/GMT: 27/02/20 / 2020-02-27 08:47:34 / February 27, 2020 @ 8:47 am. The epicenter was at a depth of 11 km (7 miles). The 3.04-magnitude earthquake was detected at 04:47:34 / 4:47 am (local time epicenter). Exact location of earthquake, longitude -66.8003 West, latitude 18.0448 North, depth = 11 km.

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Arroyo, Bayamón, Sabana Seca. The epicenter was 79 km (49 miles) from Bayamón (c. 203 500 pop), 20 km (12 miles) from Ponce (c. 152 600 pop), 40 km (25 miles) from Mayagüez (c. 78 600 pop), 48 km (30 miles) from Arecibo (c. 49 300 pop), 62 km (39 miles) from Vega Baja (c. 29 300 pop).

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been nine, in the last 10 days one hundred and nine, in the past 30 days four hundred and seven and in the last 365 days one thousand, four hundred and ninety-seven 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.

Questions or comments?

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: 1 km ENE of Guayanilla, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.04 mb The magnitude for the event.
Longitude -66.8003° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.0448° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11 km Depth of the event in kilometers.
Place 1km ENE of Guayanilla, 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 2020-02-27 08:47:34 Time when the event occurred. UTC/GMT
Updated 2020-02-27 09:13:55 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 142 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,us, A comma-separated list of network contributors.
Number of Stations Used 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1053 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.23 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 138 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 pr2020058013 Id of event.
Event Code 2020058013 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020058013,us6000855p, A comma-separated list of event ids that are associated to an event.

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