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Minor earthquake 3.1 mag, 37 km NNE of Culebra, Puerto Rico



Earthquake location 18.6231S, -65.185WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Saturday, 37 kilometers (23 miles) from Culebra in Puerto Rico. The epicenter of the earthquake was roughly 70 km (43 miles) below the earth’s surface. The 3.1-magnitude earthquake was detected at 20:02:00 / 8:02 pm (local time epicenter). Unique identifier: pr16108000. Ids that are associated to the event: pr16108000. Exact time and date of event in UTC/GMT: 17/04/16 / 2016-04-17 00:02:00 / April 17, 2016 @ 12:02 am. Exact location of earthquake, -65.185° West, 18.6231° North, depth 70 km.

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). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Canovanas, San Isidro, Punta Santiago. Epicenter of the earthquake was 59 km (37 miles) from Fajardo (c. 34 100 pop), 65 km (40 miles) from Tortola (c. 23 900 pop), 41 km (26 miles) from Charlotte Amalie (c. 20 000 pop), 73 km (46 miles) from Río Grande (c. 13 500 pop), 59 km (37 miles) from Isabel Segunda (c. 9 300 pop).

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

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 37 km NNE of Culebra, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.185° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6231° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 70 km Depth of the event in kilometers.
Place 37km NNE 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 2016-04-17 00:02:00 Time when the event occurred. UTC/GMT
Updated 2016-04-17 03:46:52 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 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.32698676 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 237.6 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 pr16108000 Id of event.
Event Code 16108000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16108000, A comma-separated list of event ids that are associated to an event.

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