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Minor earthquake, 3 mag strikes near Charlotte Amalie in U.S. Virgin Islands


Earthquake location 18.9248S, -65.1368WA minor earthquake with magnitude 3 (ml/mb) was detected on Friday, 68 kilometers (42 miles) from Charlotte Amalie in U.S. Virgin Islands. The earthquake occurred at a depth of 42 km (26 miles) below the earth’s surface. Global date and time of event UTC/GMT: 18/12/15 / 2015-12-18 21:06:41 / December 18, 2015 @ 9:06 pm. The temblor was picked up at 17:06:41 / 5:06 pm (local time epicenter). Id of earthquake: pr15352012. Event ids that are associated: pr15352012. Exact location of earthquake, longitude -65.1368 West, latitude 18.9248 North, depth = 42 km.

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). Event epicenter was 78 km (48 miles) from Tortola (c. 23 900 pop), 68 km (42 miles) from Charlotte Amalie (c. 20 000 pop), 78 km (48 miles) from Road Town (c. 8 400 pop), 75 km (47 miles) from Cruz Bay (c. 2 700 pop), 71 km (44 miles) from Culebra (c. 1 500 pop). Closest city/cities/towns to epicentrum/hypocenter was Tortola, Road Town, Cruz Bay (min 5000 pop).

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

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 68 km NNW of Charlotte Amalie, U.S. Virgin Islands. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -65.1368° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9248° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42 km Depth of the event in kilometers.
Place 68km NNW of Charlotte Amalie, U.S. Virgin Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-18 21:06:41 Time when the event occurred. UTC/GMT
Updated 2015-12-18 21:39:12 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 138 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 0.59558303 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.28 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 241.2 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 pr15352012 Id of event.
Event Code 15352012 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15352012, A comma-separated list of event ids that are associated to an event.

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