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Minor earthquake: M2.8 quake has struck near San Antonio in Puerto Rico

Posted by admin on May 21, 2016 0 Comments

Earthquake location 18.7787S, -67.3789WA minor earthquake magnitude 2.8 (ml/mb) has struck on Saturday, 43 kilometers (27 miles) from San Antonio in Puerto Rico. The 2.8-magnitude earthquake was detected at 03:09:00 / 3:09 am (local time epicenter). Global time and date of event 21/05/16 / 2016-05-21 07:09:00 / May 21, 2016 @ 7:09 am UTC/GMT. Id of earthquake: pr16142002. Event ids that are associated: pr16142002. Exact location, longitude -67.3789° West, latitude 18.7787° North, depth = 8 km. The earthquake occurred at a depth of 8 km (5 miles) below the earth’s surface.

Nearest cities/city/towns to hypocenter/epicentrum was Hormigueros, Lares, Las Marías (min 5000 pop). The epicenter was 69 km (43 miles) from Mayagüez (c. 78 600 pop), 46 km (28 miles) from Aguadilla (c. 16 100 pop), 48 km (30 miles) from Isabela (c. 12 500 pop), 76 km (47 miles) from Hormigueros (c. 11 900 pop), 64 km (40 miles) from San Sebastián (c. 11 600 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days thirteen and in the last 365 days three hundred and seventeen earthquakes of magnitude 3.0 or greater that has struck near. 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?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 43 km NW of San Antonio, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -67.3789° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7787° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 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 2016-05-21 07:09:00 Time when the event occurred. UTC/GMT
Updated 2016-05-21 08:09:28 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3997503 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.27 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 288 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 pr16142002 Id of event.
Event Code 16142002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16142002, A comma-separated list of event ids that are associated to an event.

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