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Minor earthquake, 3.16 mag has occurred near San Antonio in Puerto Rico


Earthquake location 18.9813S, -67.2616WA minor earthquake magnitude 3.16 (ml/mb) has occurred on Friday, 56 kilometers (35 miles) from San Antonio in Puerto Rico. Event id: pr2017146004. Ids that are associated to the earthquake: pr2017146004. Exact location of earthquake, longitude -67.2616 West, latitude 18.9813 North, depth = 60 km. Global time and date of event 26/05/17 / 2017-05-26 12:56:59 / May 26, 2017 @ 12:56 pm UTC/GMT. The epicenter of the earthquake was roughly 60 km (37 miles) below the earth’s surface. The 3.16-magnitude earthquake has occurred at 08:56:59 / 8:56 am (local time epicenter).

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Añasco, San Sebastián, Hatillo (min 5000 pop). Event epicenter was 63 km (39 miles) from Aguadilla (c. 16 100 pop), 59 km (37 miles) from Isabela (c. 12 500 pop), 77 km (48 miles) from San Sebastián (c. 11 600 pop), 79 km (49 miles) from Añasco (c. 6 100 pop), 72 km (45 miles) from Hatillo (c. 5 600 pop).

In the past 24 hours, there have been two, in the last 10 days ten, in the past 30 days twenty and in the last 365 days two hundred and thirty-six earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 56 km NNW of San Antonio, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.16 mb The magnitude for the event.
Longitude -67.2616° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9813° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 60 km Depth of the event in kilometers.
Place 56km 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 2017-05-26 12:56:59 Time when the event occurred. UTC/GMT
Updated 2017-05-26 23:33:41 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 154 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 14 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5354 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.41 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 264 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 pr2017146004 Id of event.
Event Code 2017146004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017146004, A comma-separated list of event ids that are associated to an event.

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