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Minor earthquake, 2.89 mag was detected near Isabela in Puerto Rico


Earthquake location 19.0718S, -66.938WA minor earthquake magnitude 2.89 (ml/mb) has occurred on Saturday, 63 kilometers (39 miles) from Isabela in Puerto Rico. Exact location, longitude -66.938° West, latitude 19.0718° North, depth = 44 km. The temblor was picked up at 08:44:16 / 8:44 am (local time epicenter). The epicenter of the earthquake was roughly 44 km (27 miles) below the earth’s surface. Exact time and date of earthquake 01/12/18 / 2018-12-01 12:44:16 / December 1, 2018 @ 12:44 pm UTC/GMT. Event ids that are associated to the earthquake: pr2018335008. Id of event: pr2018335008.

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Aguadilla, Arecibo, Quebradillas (min 5000 pop). The epicenter was 71 km (44 miles) from Arecibo (c. 49 300 pop), 75 km (47 miles) from Aguadilla (c. 16 100 pop), 64 km (40 miles) from Isabela (c. 12 500 pop), 66 km (41 miles) from Hatillo (c. 5 600 pop), 66 km (41 miles) from Quebradillas (c. 5 600 pop).

In the past 24 hours, there have been two, in the last 10 days nine, in the past 30 days eighteen and in the last 365 days two hundred and ninety-five earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 63 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.89 mb The magnitude for the event.
Longitude -66.938° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0718° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 44 km Depth of the event in kilometers.
Place 63km N of Isabela, 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 2018-12-01 12:44:16 Time when the event occurred. UTC/GMT
Updated 2018-12-01 17:50:26 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 128 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 5 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.8748 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 304 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 pr2018335008 Id of event.
Event Code 2018335008 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018335008, A comma-separated list of event ids that are associated to an event.

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