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Minor earthquake, 2.8 mag strikes near Aguadilla in Puerto Rico


Earthquake location 18.871S, -67.6372WA minor earthquake with magnitude 2.8 (ml/mb) was reported 70 kilometers (43 miles) from Aguadilla in Puerto Rico on Monday. Exact location of event, longitude -67.6372 West, latitude 18.871 North, depth = 22 km. The 2.8-magnitude earthquake has occurred at 03:59:59 / 3:59 am (local time epicenter). The earthquake occurred at a depth of 22 km (14 miles). Unique identifier: pr15201010. Ids that are associated to the event: pr15201010. Exact time and date of event in UTC/GMT: 20/07/15 / 2015-07-20 08:59:59 / July 20, 2015 @ 8:59 am.

Earthquake epicenter was 71 km (44 miles) from Aguadilla (c. 16 100 pop), 77 km (48 miles) from Isabela (c. 12 500 pop), 77 km (48 miles) from Moca (c. 5 000 pop), 72 km (45 miles) from Aguada (c. 4 000 pop), 72 km (45 miles) from Rincón (c. 1 500 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Isabela, Moca, Aguada (min 5000 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 seven, in the last 10 days fifty-seven, in the past 30 days sixty-four and in the last 365 days two hundred and seventy-five 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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 70 km NW of Aguadilla, Puerto Rico. This information 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 -67.6372° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.871° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 22 km Depth of the event in kilometers.
Place 70km NW of Aguadilla, 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 2015-07-20 08:59:59 Time when the event occurred. UTC/GMT
Updated 2015-07-20 12:28:44 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 7 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.50664982 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 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 pr15201010 Id of event.
Event Code 15201010 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15201010, A comma-separated list of event ids that are associated to an event.

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