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Minor earthquake, 3.11 mag was detected near Isabela in Puerto Rico

Earthquake location 18.8836S, -67.1055WA minor earthquake with magnitude 3.11 (ml/mb) was reported 43 kilometers (27 miles) from Isabela in Puerto Rico on Saturday. All ids that are associated to the event: pr2019286001. Unique identifier: pr2019286001. Exact location, longitude -67.1055° West, latitude 18.8836° North, depth = 104 km. The temblor was picked up at 21:29:05 / 9:29 pm (local time epicenter). The epicenter of the earthquake was roughly 104 km (65 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 13/10/19 / 2019-10-13 01:29:05 / October 13, 2019 @ 1:29 am.

Event epicenter was 76 km (47 miles) from Mayagüez (c. 78 600 pop), 61 km (38 miles) from Arecibo (c. 49 300 pop), 77 km (48 miles) from Barceloneta (c. 22 300 pop), 51 km (32 miles) from Aguadilla (c. 16 100 pop), 43 km (27 miles) from Isabela (c. 12 500 pop). Nearest cities/city/towns to hypocenter/epicentrum was Maricao, Barceloneta, Mayagüez (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been ten, in the last 10 days ninety-four, in the past 30 days three hundred and thirty-nine and in the last 365 days five hundred and ninety-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. There are an estimated 130,000 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: 43 km NNW of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.11 mb The magnitude for the event.
Longitude -67.1055° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8836° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 104 km Depth of the event in kilometers.
Place 43km NNW 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 2019-10-13 01:29:05 Time when the event occurred. UTC/GMT
Updated 2019-10-13 06:14:56 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6418 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 220 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 pr2019286001 Id of event.
Event Code 2019286001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019286001, A comma-separated list of event ids that are associated to an event.

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