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Minor earthquake, 2.85 mag was detected near San Antonio in Puerto Rico


Earthquake location 18.932S, -67.1856WA minor earthquake with magnitude 2.85 (ml/mb) was detected on Sunday, 49 kilometers (30 miles) from San Antonio in Puerto Rico. The temblor was detected at 15:03:38 / 3:03 pm (local time epicenter). Exact location of event, longitude -67.1856 West, latitude 18.932 North, depth = 8 km. Id of earthquake: pr2018315012. Event ids that are associated: pr2018315012. The earthquake occurred at a depth of 8 km (5 miles). Date and time of earthquake in UTC/GMT: 11/11/18 / 2018-11-11 19:03:38 / November 11, 2018 @ 7:03 pm.

Earthquake epicenter was 71 km (44 miles) from Arecibo (c. 49 300 pop), 56 km (35 miles) from Aguadilla (c. 16 100 pop), 51 km (32 miles) from Isabela (c. 12 500 pop), 69 km (43 miles) from San Sebastián (c. 11 600 pop), 72 km (45 miles) from Añasco (c. 6 100 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Añasco, Arecibo, San Sebastián. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

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 three hundred and twenty-nine earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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 N of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -67.1856° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.932° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 km Depth of the event in kilometers.
Place 49km N 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 2018-11-11 19:03:38 Time when the event occurred. UTC/GMT
Updated 2018-11-12 00:33:31 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 3.4 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 126 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 0.4704 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 230 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 pr2018315012 Id of event.
Event Code 2018315012 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018315012, A comma-separated list of event ids that are associated to an event.

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