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Minor earthquake: M3.28 quake has struck near Guanica in Puerto Rico


Earthquake location 17.9581S, -66.9476WA minor earthquake magnitude 3.28 (ml/mb) has occurred on Sunday, 4 kilometers (2 miles) from Guanica in Puerto Rico. Global time and date of event 12/04/20 / 2020-04-12 18:23:07 / April 12, 2020 @ 6:23 pm UTC/GMT. The 3.28-magnitude earthquake was detected at 14:23:07 / 2:23 pm (local time epicenter). Exact location of earthquake, -66.9476° West, 17.9581° North, depth 8 km. The earthquake occurred at a depth of 8 km (5 miles) below the earth’s surface. Event ids that are associated to the earthquake: pr2020103023. Id of event: pr2020103023.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Comerío, Vega Baja, Corozal. The epicenter was 36 km (22 miles) from Ponce (c. 152 600 pop), 34 km (21 miles) from Mayagüez (c. 78 600 pop), 62 km (39 miles) from Arecibo (c. 49 300 pop), 80 km (50 miles) from Vega Baja (c. 29 300 pop), 70 km (43 miles) from Barceloneta (c. 22 300 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been twenty-one, in the last 10 days one hundred and two, in the past 30 days two hundred and seventy-one and in the last 365 days one thousand, eight hundred and fourty-four earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor quakes in the world each year.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 4 km WSW of Guanica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.28 mb The magnitude for the event.
Longitude -66.9476° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9581° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 km Depth of the event in kilometers.
Place 4km WSW 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 2020-04-12 18:23:07 Time when the event occurred. UTC/GMT
Updated 2020-04-12 18:55:18 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 5.4 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 166 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 20 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0705 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.12 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 202 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 pr2020103023 Id of event.
Event Code 2020103023 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020103023, A comma-separated list of event ids that are associated to an event.

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