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



Earthquake location 18.8789S, -67.3476WA minor earthquake magnitude 2.8 (ml/mb) has struck on Monday, 50 kilometers (31 miles) from San Antonio in Puerto Rico. The epicenter of the earthquake was roughly 28 km (17 miles) below the earth’s surface. The 2.8-magnitude earthquake has occurred at 02:30:35 / 2:30 am (local time epicenter). Exact location of earthquake, longitude -67.3476 West, latitude 18.8789 North, depth = 28 km. Event id: pr17079002. Ids that are associated to the earthquake: pr17079002. Exact time and date of earthquake 20/03/17 / 2017-03-20 06:30:35 / March 20, 2017 @ 6:30 am UTC/GMT.

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 54 km (34 miles) from Aguadilla (c. 16 100 pop), 54 km (34 miles) from Isabela (c. 12 500 pop), 71 km (44 miles) from San Sebastián (c. 11 600 pop), 70 km (43 miles) from Añasco (c. 6 100 pop), 70 km (44 miles) from Hatillo (c. 5 600 pop). Nearest cities/city/towns to hypocenter/epicentrum was San Sebastián, Hatillo, Añasco (min 5000 pop).

In the past 24 hours, there have been 0, in the last 10 days fourteen, in the past 30 days thirty and in the last 365 days two hundred and twenty-nine 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. There are an estimated 1,300,000 minor quakes in the world each year.

Did you feel the quake?

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. 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: 50 km NNW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -67.3476° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8789° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 28 km Depth of the event in kilometers.
Place 50km NNW of San Antonio, 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 2017-03-20 06:30:35 Time when the event occurred. UTC/GMT
Updated 2017-03-20 07:13:56 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 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 5 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.46622563 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.23 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 327.6 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 pr17079002 Id of event.
Event Code 17079002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17079002, A comma-separated list of event ids that are associated to an event.

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