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Minor earthquake, 2.9 mag strikes near Isabela in Puerto Rico


Earthquake location 19.0076S, -67.0406WA minor earthquake with magnitude 2.9 (ml/mb) was detected on Saturday, 56 kilometers (35 miles) from Isabela in Puerto Rico. Unique identifier: pr2018013005. Ids that are associated to the event: pr2018013005. Global date and time of event UTC/GMT: 13/01/18 / 2018-01-13 12:04:11 / January 13, 2018 @ 12:04 pm. Exact location of event, longitude -67.0406 West, latitude 19.0076 North, depth = 28 km. The earthquake occurred at a depth of 28 km (17 miles). The temblor was picked up at 08:04:11 / 8:04 am (local time epicenter).

Event epicenter was 69 km (43 miles) from Arecibo (c. 49 300 pop), 66 km (41 miles) from Aguadilla (c. 16 100 pop), 56 km (35 miles) from Isabela (c. 12 500 pop), 75 km (46 miles) from San Sebastián (c. 11 600 pop), 62 km (39 miles) from Hatillo (c. 5 600 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was San Sebastián, Aguada, Arecibo (min 5000 pop).

In the past 24 hours, there have been two, in the last 10 days nine, in the past 30 days thirty-one and in the last 365 days two hundred and ninety-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 56 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -67.0406° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0076° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 28 km Depth of the event in kilometers.
Place 56km 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 2018-01-13 12:04:11 Time when the event occurred. UTC/GMT
Updated 2018-01-13 17:32:55 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 129 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7204 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 330 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 pr2018013005 Id of event.
Event Code 2018013005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018013005, A comma-separated list of event ids that are associated to an event.

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