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Minor earthquake: M2.8 quake has struck near Rincon in Puerto Rico



Earthquake location 18.3167S, -67.6735WA minor earthquake with magnitude 2.8 (ml/mb) was reported 44 kilometers (27 miles) from Rincon in Puerto Rico on Wednesday. All ids that are associated to the event: pr16112000. Unique identifier: pr16112000. The earthquake occurred at a depth of 25 km (16 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 21/04/16 / 2016-04-21 02:43:36 / April 21, 2016 @ 2:43 am. The 2.8-magnitude earthquake was detected at 21:43:36 / 9:43 pm (local time epicenter). Exact location of earthquake, longitude -67.6735 West, latitude 18.3167 North, depth = 25 km.

Epicenter of the event was 58 km (36 miles) from Mayagüez (c. 78 600 pop), 56 km (35 miles) from Aguadilla (c. 16 100 pop), 71 km (44 miles) from Isabela (c. 12 500 pop), 71 km (44 miles) from San Germán (c. 12 100 pop), 61 km (38 miles) from Hormigueros (c. 11 900 pop). Closest city/cities/towns to epicentrum/hypocenter was Maricao, Las Marías, San Sebastián (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Each year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been 0, in the last 10 days four, in the past 30 days twelve and in the last 365 days two hundred and ninety-three earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel anything?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 44 km W of Rincon, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -67.6735° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.3167° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25 km Depth of the event in kilometers.
Place 44km W of Rincon, 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 2016-04-21 02:43:36 Time when the event occurred. UTC/GMT
Updated 2016-04-21 04:00:14 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 121 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 7 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.55426053 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 313.2 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 pr16112000 Id of event.
Event Code 16112000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16112000, A comma-separated list of event ids that are associated to an event.

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