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Light earthquake: M4.4 quake has struck near Road Town in British Virgin Islands

Posted by admin on July 22, 2017 0 Comments

Earthquake location 20.257S, -64.977WA light earthquake with magnitude 4.4 (ml/mb) was detected on Saturday, 207 km N of Road Town, British Virgin Islands (129 miles). Exact location, longitude -64.977° West, latitude 20.257° North, depth = 20 km. Id of earthquake: pt17203050. Event ids that are associated: pt17203050. The temblor was picked up at 05:41:04 / 5:41 am (local time epicenter). Exact time and date of earthquake 22/07/17 / 2017-07-22 09:41:04 / July 22, 2017 @ 9:41 am UTC/GMT. The earthquake occurred at a depth of 20 km (12 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days nine and in the last 365 days ninety-four earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 13,000 light earthquakes in the world each year.

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 207 km N of Road Town, British Virgin Islands.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -64.977° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 20.257° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place 207km N of Road Town, British 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 2017-07-22 09:41:04 Time when the event occurred. UTC/GMT
Updated 2017-07-22 09:45:19 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 298 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pt The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt, A comma-separated list of network contributors.
Number of Stations Used 25 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pt17203050 Id of event.
Event Code 17203050 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt17203050, A comma-separated list of event ids that are associated to an event.

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