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Minor earthquake: M2.86 quake has struck near Culebra in Puerto Rico


Earthquake location 18.8403S, -65.3118WA minor earthquake magnitude 2.86 (ml/mb) has struck on Thursday, 59 kilometers (37 miles) from Culebra in Puerto Rico. Global time and date of event 15/12/17 / 2017-12-15 01:42:04 / December 15, 2017 @ 1:42 am UTC/GMT. Exact location of event, longitude -65.3118 West, latitude 18.8403 North, depth = 55 km. The temblor was detected at 21:42:04 / 9:42 pm (local time epicenter). Unique identifier: pr2017349005. Ids that are associated to the event: pr2017349005. The earthquake was roughly at a depth of 55 km (34 miles).

Closest city/cities/towns to epicentrum/hypocenter was Loíza, Río Grande, Ceiba (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop). The epicenter was 68 km (42 miles) from Fajardo (c. 34 100 pop), 68 km (43 miles) from Charlotte Amalie (c. 20 000 pop), 75 km (47 miles) from Río Grande (c. 13 500 pop), 67 km (42 miles) from Luquillo (c. 8 300 pop), 73 km (46 miles) from Ceiba (c. 6 300 pop).

Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days twelve, in the past 30 days twenty-six and in the last 365 days four hundred and fourty-four earthquakes of magnitude 3.0 or greater that have been detected nearby.

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. 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: 59 km N of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.86 mb The magnitude for the event.
Longitude -65.3118° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8403° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 55 km Depth of the event in kilometers.
Place 59km N of Culebra, 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 2017-12-15 01:42:04 Time when the event occurred. UTC/GMT
Updated 2017-12-16 06:44:13 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 126 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 1.1123 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 335 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 pr2017349005 Id of event.
Event Code 2017349005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017349005, A comma-separated list of event ids that are associated to an event.

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