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Minor earthquake: M2.84 quake has struck near San Antonio in Puerto Rico

Posted by admin on August 21, 2018 0 Comments

Earthquake location 18.8066S, -67.3483WA minor earthquake magnitude 2.84 (ml/mb) strikes 43 kilometers (27 miles) from San Antonio in Puerto Rico on Monday. The epicenter of the earthquake was roughly 64 km (40 miles) below the earth’s surface. Exact time and date of earthquake 21/08/18 / 2018-08-21 00:14:12 / August 21, 2018 @ 12:14 am UTC/GMT. Exact location of earthquake, longitude -67.3483 West, latitude 18.8066 North, depth = 64 km. Id of earthquake: pr2018233000. Event ids that are associated: pr2018233000. The temblor was detected at 20:14:12 / 8:14 pm (local time epicenter).

Epicenter of the event was 71 km (44 miles) from Mayagüez (c. 78 600 pop), 76 km (47 miles) from Arecibo (c. 49 300 pop), 47 km (29 miles) from Aguadilla (c. 16 100 pop), 48 km (30 miles) from Isabela (c. 12 500 pop), 64 km (40 miles) from San Sebastián (c. 11 600 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Arecibo, Lares, Las Marías (min 5000 pop).

There are an estimated 1,300,000 minor quakes in the world each year. In the past 24 hours, there have been 0, in the last 10 days seven, in the past 30 days twenty-eight and in the last 365 days three hundred and fifty earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 2.9 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: 43 km NW of San Antonio, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.84 mb The magnitude for the event.
Longitude -67.3483° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8066° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 64 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 2018-08-21 00:14:12 Time when the event occurred. UTC/GMT
Updated 2018-08-21 06:52:48 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 124 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 7 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4138 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 313 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 pr2018233000 Id of event.
Event Code 2018233000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018233000, A comma-separated list of event ids that are associated to an event.

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