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Minor earthquake, 3 mag has occurred near San Antonio in Puerto Rico


Earthquake location 18.7395S, -67.4225WA minor earthquake with magnitude 3 (ml/mb) was detected on Tuesday, 43 kilometers (27 miles) from San Antonio in Puerto Rico. Exact location of event, longitude -67.4225 West, latitude 18.7395 North, depth = 4 km. Unique identifier: pr16215004. Ids that are associated to the event: pr16215004. Exact time and date of earthquake 02/08/16 / 2016-08-02 23:21:46 / August 2, 2016 @ 11:21 pm UTC/GMT. The epicenter was at a depth of 4 km (2 miles). The temblor was picked up at 19:21:46 / 7:21 pm (local time epicenter).

Earthquake epicenter was 67 km (42 miles) from Mayagüez (c. 78 600 pop), 45 km (28 miles) from Aguadilla (c. 16 100 pop), 50 km (31 miles) from Isabela (c. 12 500 pop), 74 km (46 miles) from Hormigueros (c. 11 900 pop), 64 km (40 miles) from San Sebastián (c. 11 600 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Cabo Rojo, Puerto Real, Maricao.

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days fifteen and in the last 365 days two hundred and fifty-six earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 43 km NW of San Antonio, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -67.4225° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7395° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4 km Depth of the event in kilometers.
Place 43km NW 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 2016-08-02 23:21:46 Time when the event occurred. UTC/GMT
Updated 2016-08-03 04:34:14 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 138 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 11 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.35663117 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 273.6 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 pr16215004 Id of event.
Event Code 16215004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16215004, A comma-separated list of event ids that are associated to an event.

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