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



Earthquake location 18.8731S, -67.3393WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Wednesday, 49 kilometers (30 miles) from San Antonio in Puerto Rico. Exact time and date of event in UTC/GMT: 06/04/16 / 2016-04-06 17:49:01 / April 6, 2016 @ 5:49 pm. Id of earthquake: pr16097006. Event ids that are associated: pr16097006. The epicenter was at a depth of 7 km (4 miles). Exact location of event, longitude -67.3393 West, latitude 18.8731 North, depth = 7 km. The 2.8-magnitude earthquake was detected at 13:49:01 / 1:49 pm (local time epicenter).

Event epicenter was 53 km (33 miles) from Aguadilla (c. 16 100 pop), 53 km (33 miles) from Isabela (c. 12 500 pop), 70 km (44 miles) from San Sebastián (c. 11 600 pop), 69 km (43 miles) from Añasco (c. 6 100 pop), 69 km (43 miles) from Hatillo (c. 5 600 pop). Nearest cities/city/towns to hypocenter/epicentrum was San Sebastián, Hatillo, Añasco (min 5000 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

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

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 49 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 -67.3393° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8731° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 49km 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 2016-04-06 17:49:01 Time when the event occurred. UTC/GMT
Updated 2016-04-06 21:33:44 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 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.45724248 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 219.6 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 pr16097006 Id of event.
Event Code 16097006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16097006, A comma-separated list of event ids that are associated to an event.

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