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Minor earthquake: M3.14 quake has struck near Brenas in Puerto Rico

Earthquake location 18.6261S, -66.3815WA minor earthquake magnitude 3.14 (ml/mb) strikes 18 kilometers (11 miles) from Brenas in Puerto Rico on Tuesday. Exact location of earthquake, longitude -66.3815 West, latitude 18.6261 North, depth = 97 km. All ids that are associated to the event: pr2018031000. Unique identifier: pr2018031000. The 3.14-magnitude earthquake was detected at 20:31:01 / 8:31 pm (local time epicenter). The epicenter was at a depth of 97 km (60 miles). Global date and time of event UTC/GMT: 31/01/18 / 2018-01-31 00:31:01 / January 31, 2018 @ 12:31 am.

Nearest cities/city/towns to hypocenter/epicentrum was Maricao, Guayanilla, Patillas (min 5000 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Epicenter of the event was 34 km (21 miles) from San Juan (c. 418 100 pop), 35 km (22 miles) from Bayamón (c. 203 500 pop), 52 km (33 miles) from Carolina (c. 170 400 pop), 73 km (45 miles) from Ponce (c. 152 600 pop), 56 km (35 miles) from Caguas (c. 86 800 pop).

In the past 24 hours, there have been one, in the last 10 days eight, in the past 30 days twenty-five and in the last 365 days two hundred and twenty-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. Each year there are an estimated 130,000 minor quakes in the world.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 18 km NNW of Brenas, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.14 mb The magnitude for the event.
Longitude -66.3815° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6261° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 97 km Depth of the event in kilometers.
Place 18km NNW 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 2018-01-31 00:31:01 Time when the event occurred. UTC/GMT
Updated 2018-01-31 06:04:18 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 152 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4351 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.08 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 235 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 pr2018031000 Id of event.
Event Code 2018031000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018031000, A comma-separated list of event ids that are associated to an event.

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