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Minor earthquake: M2.9 quake has struck near San Juan in Puerto Rico


Earthquake location 18.6233S, -66.0449WA minor earthquake with magnitude 2.9 (ml/mb) was reported 18 kilometers (11 miles) from San Juan in Puerto Rico on Friday. The earthquake occurred at a depth of 110 km (68 miles). The temblor was picked up at 13:17:00 / 1:17 pm (local time epicenter). Exact location of earthquake, longitude -66.0449 West, latitude 18.6233 North, depth = 110 km. Exact time and date of earthquake 11/12/15 / 2015-12-11 17:17:00 / December 11, 2015 @ 5:17 pm UTC/GMT. Event id: pr15345005. Ids that are associated to the earthquake: pr15345005.

Epicenter of the earthquake was 19 km (12 miles) from San Juan (c. 418 100 pop), 28 km (17 miles) from Bayamón (c. 203 500 pop), 29 km (18 miles) from Carolina (c. 170 400 pop), 43 km (27 miles) from Caguas (c. 86 800 pop), 30 km (19 miles) from Guaynabo (c. 81 400 pop). Nearest cities/city/villages to epicentrum/hypocenter was Salinas, Jayuya, Arroyo (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been 0, in the last 10 days eight, in the past 30 days thirty-five and in the last 365 days four hundred and fourty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

How would you describe the shaking?

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 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: 18 km NNE of San Juan, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -66.0449° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6233° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 110 km Depth of the event in kilometers.
Place 18km NNE of San Juan, 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 2015-12-11 17:17:00 Time when the event occurred. UTC/GMT
Updated 2015-12-11 17:47:26 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 129 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 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.39256378 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 201.6 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 pr15345005 Id of event.
Event Code 15345005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15345005, A comma-separated list of event ids that are associated to an event.

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