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Minor earthquake, 2.8 mag strikes near Arecibo in Puerto Rico



Earthquake location 18.6564S, -66.6491WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Tuesday, 21 kilometers (13 miles) from Arecibo in Puerto Rico. Event id: pr16334014. Ids that are associated to the earthquake: pr16334014. Exact location of earthquake, longitude -66.6491 West, latitude 18.6564 North, depth = 7 km. The earthquake occurred at a depth of 7 km (4 miles). The temblor was reported at 18:08:44 / 6:08 pm (local time epicenter). Global time and date of event 29/11/16 / 2016-11-29 22:08:44 / November 29, 2016 @ 10:08 pm UTC/GMT.

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Hormigueros, San Germán, Trujillo Alto (min 5000 pop). Epicenter of the earthquake was 61 km (38 miles) from San Juan (c. 418 100 pop), 59 km (37 miles) from Bayamón (c. 203 500 pop), 72 km (45 miles) from Ponce (c. 152 600 pop), 66 km (41 miles) from Guaynabo (c. 81 400 pop), 72 km (45 miles) from Mayagüez (c. 78 600 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor quakes in the world. In the past 24 hours, there have been one, in the last 10 days seven, in the past 30 days nineteen and in the last 365 days one hundred and ninety-eight 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: 21 km NNE of Arecibo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.6491° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6564° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 21km NNE of Arecibo, 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 2016-11-29 22:08:44 Time when the event occurred. UTC/GMT
Updated 2016-11-29 22:44:36 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 0.5821083 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 266.4 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 pr16334014 Id of event.
Event Code 16334014 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16334014, A comma-separated list of event ids that are associated to an event.

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