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Light earthquake: M4.1 quake has struck near Portsmouth in Dominica


Earthquake location 15.6561S, -61.5115WA light earthquake with magnitude 4.1 (ml/mb) was reported 9 kilometers (6 miles) from Portsmouth in Dominica on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 4.52 km (3 miles) below the earth’s surface. Exact location of earthquake, -61.5115° West, 15.6561° North, depth 4.52 km. Event ids that are associated to the earthquake: us20005hdv. Id of event: us20005hdv. The temblor was reported at 08:36:32 / 8:36 am (local time epicenter). Global time and date of event 12/04/16 / 2016-04-12 12:36:32 / April 12, 2016 @ 12:36 pm UTC/GMT.

Close country/countries, Guadeloupe (c. 443 000 pop) (That might be effected). Epicenter of the event was 68 km (42 miles) from Les Abymes (c. 63 100 pop), 68 km (43 miles) from Baie-Mahault (c. 30 600 pop), 61 km (38 miles) from Le Gosier (c. 28 700 pop), 60 km (37 miles) from Petit-Bourg (c. 25 000 pop), 65 km (40 miles) from Sainte-Anne (c. 22 900 pop), 77 km (48 miles) from Le Moule (c. 22 700 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Anse-Bertrand, Port-Louis, Petit-Canal.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days five earthquakes of magnitude 3.0 or greater that have been detected nearby. Each 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.

Did you feel it?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 9 km NNW of Portsmouth, Dominica. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -61.5115° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.6561° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4.52 km Depth of the event in kilometers.
Place 9km NNW of Portsmouth, Dominica Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-04-12 12:36:32 Time when the event occurred. UTC/GMT
Updated 2016-04-12 21:17:10 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 3.1 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 260 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 0.23 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.97 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 58 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 us20005hdv Id of event.
Event Code 20005hdv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20005hdv, A comma-separated list of event ids that are associated to an event.

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