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Minor earthquake, 2.8 mag strikes near Culebra in Puerto Rico


Earthquake location 18.7497S, -65.2265WA minor earthquake with magnitude 2.8 (ml/mb) was reported 50 kilometers (31 miles) from Culebra in Puerto Rico on Tuesday. The earthquake was roughly at a depth of 49 km (30 miles). Exact location of event, depth 49 km, -65.2265° West, 18.7497° North. Event id: pr17003005. Ids that are associated to the earthquake: pr17003005. Exact time and date of earthquake 03/01/17 / 2017-01-03 19:54:14 / January 3, 2017 @ 7:54 pm UTC/GMT. The temblor was picked up at 15:54:14 / 3:54 pm (local time epicenter).

Earthquake epicenter was 65 km (40 miles) from Fajardo (c. 34 100 pop), 74 km (46 miles) from Tortola (c. 23 900 pop), 55 km (34 miles) from Charlotte Amalie (c. 20 000 pop), 76 km (47 miles) from Río Grande (c. 13 500 pop), 71 km (44 miles) from Isabel Segunda (c. 9 300 pop). Closest city/cities/towns to epicentrum/hypocenter was Río Grande, Tortola, Road Town (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop).

In the past 24 hours, there have been two, in the last 10 days six, in the past 30 days twenty-nine and in the last 365 days four hundred and fourty-four earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor earthquakes in the world.

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: 50 km N of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -65.2265° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7497° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 49 km Depth of the event in kilometers.
Place 50km N of Culebra, 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 2017-01-03 19:54:14 Time when the event occurred. UTC/GMT
Updated 2017-01-03 20:18:40 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 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 13 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.44197112 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.38 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 pr17003005 Id of event.
Event Code 17003005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17003005, A comma-separated list of event ids that are associated to an event.

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