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Minor earthquake: M2.85 quake has struck near Hatillo in Puerto Rico

Earthquake location 18.7061S, -66.8696WA minor earthquake with magnitude 2.85 (ml/mb) was reported 24 kilometers (15 miles) from Hatillo in Puerto Rico on Friday. The temblor was reported at 04:49:25 / 4:49 am (local time epicenter). Exact time and date of event in UTC/GMT: 07/12/18 / 2018-12-07 08:49:25 / December 7, 2018 @ 8:49 am. All ids that are associated to the event: pr2018341003. Unique identifier: pr2018341003. The earthquake occurred at a depth of 63 km (39 miles). Exact location of event, depth 63 km, -66.8696° West, 18.7061° North.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Guayanilla, Candelaria Arenas, Villalba. Event epicenter was 63 km (39 miles) from Mayagüez (c. 78 600 pop), 31 km (19 miles) from Arecibo (c. 49 300 pop), 59 km (36 miles) from Vega Baja (c. 29 300 pop), 45 km (28 miles) from Barceloneta (c. 22 300 pop), 75 km (46 miles) from Yauco (c. 20 300 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days nine, in the past 30 days fifteen and in the last 365 days two hundred and fifty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 1,300,000 minor earthquakes in the world.

Did you feel it?

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 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: 24 km N of Hatillo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -66.8696° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7061° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 63 km Depth of the event in kilometers.
Place 24km N of Hatillo, 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 2018-12-07 08:49:25 Time when the event occurred. UTC/GMT
Updated 2018-12-07 11:49:05 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 125 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3395 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 265 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 pr2018341003 Id of event.
Event Code 2018341003 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018341003, A comma-separated list of event ids that are associated to an event.

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