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Light earthquake: M4.3 quake has struck near Codrington in Barbuda



Earthquake location 17.4817S, -61.159WA light earthquake magnitude 4.3 (ml/mb) has struck on Monday, 71 kilometers (44 miles) from Codrington in Barbuda. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -61.159 West, latitude 17.4817 North, depth = 10 km. The earthquake occurred at a depth of 10 km (6 miles). The temblor was detected at 04:31:06 / 4:31 am (local time epicenter). Global date and time of event UTC/GMT: 17/04/17 / 2017-04-17 08:31:06 / April 17, 2017 @ 8:31 am. Unique identifier: us10008ibk. Ids that are associated to the event: us10008ibk.

Nearby country/countries, Antigua and Barbuda (c. 87 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Bolands, Saint John’s, Falmouth. Event epicenter was 83 km (52 miles) from Saint John’s (c. 24 200 pop), 79 km (49 miles) from Piggotts (c. 1 900 pop), 89 km (55 miles) from Bolands (c. 1 700 pop), 73 km (46 miles) from Codrington (c. 1 300 pop), 78 km (48 miles) from Parham (c. 1 000 pop), 83 km (52 miles) from Falmouth (c. 600 pop).

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 71 km ESE of Codrington, Barbuda.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -61.159° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.4817° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 71km ESE of Codrington, Barbuda Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-17 08:31:06 Time when the event occurred. UTC/GMT
Updated 2017-04-17 13:04:40 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 284 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.625 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 176 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10008ibk Id of event.
Event Code 10008ibk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008ibk, A comma-separated list of event ids that are associated to an event.

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