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Minor earthquake, 3.1 mag was detected near Culebra in Puerto Rico



Earthquake location 18.7374S, -65.3206WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Wednesday, 48 kilometers (30 miles) from Culebra in Puerto Rico. The 3.1-magnitude earthquake was detected at 01:18:43 / 1:18 am (local time epicenter). The earthquake occurred at a depth of 48 km (30 miles). Exact location of event, longitude -65.3206 West, latitude 18.7374 North, depth = 48 km. Unique identifier: pr17081000. Ids that are associated to the event: pr17081000. Exact time and date of event in UTC/GMT: 22/03/17 / 2017-03-22 05:18:43 / March 22, 2017 @ 5:18 am.

Event epicenter was 78 km (48 miles) from Carolina (c. 170 400 pop), 58 km (36 miles) from Fajardo (c. 34 100 pop), 60 km (37 miles) from Charlotte Amalie (c. 20 000 pop), 67 km (42 miles) from Río Grande (c. 13 500 pop), 67 km (41 miles) from Isabel Segunda (c. 9 300 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Carolina, Punta Santiago, Santa Barbara (min 5000 pop).

In the past 24 hours, there have been three, in the last 10 days thirteen, in the past 30 days fifty-four and in the last 365 days three hundred and ninety-nine earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 48 km N of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.3206° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7374° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 48 km Depth of the event in kilometers.
Place 48km 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 2017-03-22 05:18:43 Time when the event occurred. UTC/GMT
Updated 2017-03-22 07:49:48 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 148 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 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.42849639 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.23 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 277.2 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 pr17081000 Id of event.
Event Code 17081000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17081000, A comma-separated list of event ids that are associated to an event.

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