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Minor earthquake, 2.8 mag strikes near Magas Arriba in Puerto Rico


Earthquake location 18.0083S, -66.774WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Thursday, 1 kilometers (1 miles) from Magas Arriba in Puerto Rico. The temblor was detected at 09:14:41 / 9:14 am (local time epicenter). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Event id: pr2020009068. Ids that are associated to the earthquake: pr2020009068. Exact location of earthquake, longitude -66.774 West, latitude 18.0083 North, depth = 10 km. Global time and date of event 09/01/20 / 2020-01-09 13:14:41 / January 9, 2020 @ 1:14 pm UTC/GMT.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). The epicenter was 17 km (11 miles) from Ponce (c. 152 600 pop), 44 km (27 miles) from Mayagüez (c. 78 600 pop), 52 km (32 miles) from Arecibo (c. 49 300 pop), 63 km (39 miles) from Vega Baja (c. 29 300 pop), 55 km (34 miles) from Barceloneta (c. 22 300 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Aguas Buenas, Arroyo, Ingenio.

There are an estimated 1,300,000 minor earthquakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been thirty-four, in the last 10 days one hundred and ninety, in the past 30 days two hundred and thirty and in the last 365 days three hundred and three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

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: 1 km SSW of Magas Arriba, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.774° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.0083° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 1km SSW of Magas Arriba, 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 2020-01-09 13:14:41 Time when the event occurred. UTC/GMT
Updated 2020-01-10 03:21:00 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 121 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1713 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 182 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 pr2020009068 Id of event.
Event Code 2020009068 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020009068, A comma-separated list of event ids that are associated to an event.

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