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Minor earthquake: M3.1 quake has struck near Brenas in Puerto Rico

Earthquake location 18.4806S, -66.3517WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Tuesday, 1 kilometers (1 miles) from Brenas in Puerto Rico. Id of earthquake: pr16027000. Event ids that are associated: pr16027000. Exact location of earthquake, longitude -66.3517 West, latitude 18.4806 North, depth = 119 km. The epicenter was at a depth of 119 km (74 miles). The 3.1-magnitude earthquake was detected at 20:56:46 / 8:56 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 27/01/16 / 2016-01-27 00:56:46 / January 27, 2016 @ 12:56 am.

Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Epicenter of the earthquake was 26 km (16 miles) from San Juan (c. 418 100 pop), 23 km (14 miles) from Bayamón (c. 203 500 pop), 43 km (27 miles) from Carolina (c. 170 400 pop), 59 km (37 miles) from Ponce (c. 152 600 pop), 42 km (26 miles) from Caguas (c. 86 800 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Sabana Grande, Ceiba, Fajardo.

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. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days eleven and in the last 365 days two hundred and fourty-eight earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 1 km NW of Brenas, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -66.3517° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.4806° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 119 km Depth of the event in kilometers.
Place 1km NW of Brenas, 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 2016-01-27 00:56:46 Time when the event occurred. UTC/GMT
Updated 2016-01-27 03:49:19 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 148 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 0.40424188 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.33 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 205.2 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 pr16027000 Id of event.
Event Code 16027000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16027000, A comma-separated list of event ids that are associated to an event.

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