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Minor earthquake 2.81 mag, 52 km N of Isabela, Puerto Rico


Earthquake location 18.977S, -67.0438WA minor earthquake with magnitude 2.81 (ml/mb) was reported 52 kilometers (32 miles) from Isabela in Puerto Rico on Thursday. Exact time and date of event in UTC/GMT: 27/09/19 / 2019-09-27 01:00:00 / September 27, 2019 @ 1:00 am. The epicenter of the earthquake was roughly 5 km (3 miles) below the earth’s surface. Exact location of earthquake, longitude -67.0438 West, latitude 18.977 North, depth = 5 km. Id of earthquake: pr2019270009. Event ids that are associated: pr2019270009. The temblor was reported at 21:00:00 / 9:00 pm (local time epicenter).

Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Rincón, San Sebastián, Aguada. Epicenter of the event was 66 km (41 miles) from Arecibo (c. 49 300 pop), 62 km (39 miles) from Aguadilla (c. 16 100 pop), 53 km (33 miles) from Isabela (c. 12 500 pop), 71 km (44 miles) from San Sebastián (c. 11 600 pop), 59 km (37 miles) from Hatillo (c. 5 600 pop).

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

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. 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: 52 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -67.0438° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.977° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 52km 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 2019-09-27 01:00:00 Time when the event occurred. UTC/GMT
Updated 2019-09-27 15:13:15 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2 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 122 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5139 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 307 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 pr2019270009 Id of event.
Event Code 2019270009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019270009, A comma-separated list of event ids that are associated to an event.

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