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Minor earthquake 2.9 mag, 51 km NNW of San Antonio, Puerto Rico

Posted by admin on December 16, 2016 0 Comments

Earthquake location 18.8976S, -67.3395WA minor earthquake magnitude 2.9 (ml/mb) strikes 51 kilometers (32 miles) from San Antonio in Puerto Rico on Friday. The 2.9-magnitude earthquake was detected at 16:28:39 / 4:28 pm (local time epicenter). Id of earthquake: pr16351006. Event ids that are associated: pr16351006. The epicenter was at a depth of 7 km (4 miles). Global date and time of event UTC/GMT: 16/12/16 / 2016-12-16 20:28:39 / December 16, 2016 @ 8:28 pm. Exact location of event, longitude -67.3395 West, latitude 18.8976 North, depth = 7 km.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 56 km (35 miles) from Aguadilla (c. 16 100 pop), 55 km (34 miles) from Isabela (c. 12 500 pop), 72 km (45 miles) from San Sebastián (c. 11 600 pop), 72 km (44 miles) from Añasco (c. 6 100 pop), 71 km (44 miles) from Hatillo (c. 5 600 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was San Sebastián, Añasco, Hatillo.

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been 0, in the last 10 days five, in the past 30 days eighteen and in the last 365 days two hundred and eighteen earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

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: 51 km NNW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -67.3395° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8976° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 51km 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 2016-12-16 20:28:39 Time when the event occurred. UTC/GMT
Updated 2016-12-16 21:08:58 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 129 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.47970036 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 223.2 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 pr16351006 Id of event.
Event Code 16351006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16351006, A comma-separated list of event ids that are associated to an event.

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