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Minor earthquake 3.11 mag, 2 km ENE of Maria Antonia, Puerto Rico


Earthquake location 17.9848S, -66.8631WA minor earthquake magnitude 3.11 (ml/mb) has struck on Tuesday, 2 kilometers (1 miles) from Maria Antonia in Puerto Rico. Event id: pr2020112005. Ids that are associated to the earthquake: pr2020112005. Exact time and date of earthquake 21/04/20 / 2020-04-21 05:34:49 / April 21, 2020 @ 5:34 am UTC/GMT. Exact location of event, longitude -66.8631 West, latitude 17.9848 North, depth = 12 km. The earthquake was roughly at a depth of 12 km (7 miles). The 3.11-magnitude earthquake was detected at 01:34:49 / 1:34 am (local time epicenter).

Closest city/cities/towns to epicentrum/hypocenter was Pájaros, Guayama, Toa Alta (min 5000 pop). Epicenter of the earthquake was 26 km (16 miles) from Ponce (c. 152 600 pop), 38 km (24 miles) from Mayagüez (c. 78 600 pop), 56 km (35 miles) from Arecibo (c. 49 300 pop), 72 km (45 miles) from Vega Baja (c. 29 300 pop), 62 km (39 miles) from Barceloneta (c. 22 300 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days fifty-six, in the past 30 days two hundred and thirty and in the last 365 days one thousand, eight hundred and seventy-five earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Questions or comments?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 2 km ENE of Maria Antonia, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.11 mb The magnitude for the event.
Longitude -66.8631° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9848° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 2km ENE of Maria Antonia, 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 2020-04-21 05:34:49 Time when the event occurred. UTC/GMT
Updated 2020-04-21 06:14:24 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 149 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 0.0188 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147 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 pr2020112005 Id of event.
Event Code 2020112005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020112005, A comma-separated list of event ids that are associated to an event.

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