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Earthquake: M 2.8 quake strikes near Isabela in Puerto Rico


Earthquake location 18.7185S, -66.9865WA minor earthquake magnitude 2.8 (mg/mb) was reported Wednesday, 24 kilometers (15 miles) from Isabela in Puerto Rico. The temblor was reported at 17:56:19 / 5:56 pm (local time epicenter) at a depth of 14 km (9 miles). Global time of event 08/04/15 / 2015-04-08 21:56:19 / April 8, 2015 @ 9:56 pm UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -66.9865 West, latitude 18.7185 North, depth 14 km, unique identifier, pr15098004.

Close countries, Puerto Rico (c. 3 917 000 pop). The epicenter was 60 km (37 miles) from Mayagüez (c. 78 600 pop), 40 km (25 miles) from Arecibo (c. 49 300 pop), 70 km (44 miles) from Vega Baja (c. 29 300 pop), 56 km (35 miles) from Barceloneta (c. 22 300 pop), 68 km (42 miles) from Adjuntas (c. 19 500 pop). Nearest city, towns to epicentrum/hypocenter was Vega Alta, Morovis, Lajas.

Did you feel it?

Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 24 km N of Isabela, Puerto Rico.


More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.9865° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7185° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14 km Depth of the event in kilometers.
Place 24km N of Isabela, 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 2015-04-08 21:56:19 Time when the event occurred. UTC/GMT
Updated 2015-04-09 00:11:38 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 0.27578279 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.09 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 262.8 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 pr15098004 Id of event.
Event Code 15098004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15098004, A comma-separated list of event ids that are associated to an event.

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