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Minor earthquake: M3.81 quake has struck near Guanica in Puerto Rico


Earthquake location 17.9435S, -66.9268WA minor earthquake magnitude 3.81 (ml/mb) has struck on Saturday, 11 kilometers (7 miles) from Guanica in Puerto Rico. The 3.81-magnitude earthquake has occurred at 06:32:20 / 6:32 am (local time epicenter). Date and time of earthquake in UTC/GMT: 25/01/20 / 2020-01-25 10:32:20 / January 25, 2020 @ 10:32 am. Event ids that are associated to the earthquake: us60007fm4, pr2020025006. Id of event: pr2020025006. Exact location of event, depth 11 km, -66.9268° West, 17.9435° North. The epicenter was at a depth of 11 km (7 miles).

Earthquake epicenter was 34 km (21 miles) from Ponce (c. 152 600 pop), 36 km (23 miles) from Mayagüez (c. 78 600 pop), 63 km (39 miles) from Arecibo (c. 49 300 pop), 80 km (49 miles) from Vega Baja (c. 29 300 pop), 70 km (43 miles) from Barceloneta (c. 22 300 pop), 86 km (54 miles) from Guayama (c. 21 600 pop). Closest city/cities/towns to epicentrum/hypocenter was Toa Alta, San Antonio, Guayama (min 5000 pop). Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

In the past 24 hours, there have been fifteen, in the last 10 days three hundred and thirteen, in the past 30 days seven hundred and sixty-nine and in the last 365 days eight hundred and fourty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world.

Did you feel anything?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 11 km SSE of Guanica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.81 mb The magnitude for the event.
Longitude -66.9268° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9435° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11 km Depth of the event in kilometers.
Place 11km 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 2020-01-25 10:32:20 Time when the event occurred. UTC/GMT
Updated 2020-01-25 11:02:31 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 11 The total number of felt reports
CDI 4.6 The maximum reported intensity for the event.
MMI 3.059 The maximum estimated instrumental intensity for the event.
Alert Level green 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 228 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 ,us,pr, A comma-separated list of network contributors.
Number of Stations Used 11 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0571 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 213 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 pr2020025006 Id of event.
Event Code 2020025006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us60007fm4,pr2020025006, A comma-separated list of event ids that are associated to an event.

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