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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag was detected near Aguadilla in Puerto Rico

Earthquake location 18.738S, -67.54WA minor earthquake with magnitude 3.9 (ml/mb) was detected on Sunday, 53 kilometers (33 miles) from Aguadilla in Puerto Rico. Exact location of earthquake, longitude -67.54 West, latitude 18.738 North, depth = 43 km. Date and time of earthquake in UTC/GMT: 31/01/16 / 2016-01-31 22:13:56 / January 31, 2016 @ 10:13 pm. The earthquake was roughly at a depth of 43 km (27 miles). The 3.9-magnitude earthquake has occurred at 17:13:56 / 5:13 pm (local time epicenter). Id of earthquake: pr16031004. Event ids that are associated: pr16031004.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the event was 73 km (45 miles) from Mayagüez (c. 78 600 pop), 53 km (33 miles) from Aguadilla (c. 16 100 pop), 60 km (38 miles) from Isabela (c. 12 500 pop), 79 km (49 miles) from Hormigueros (c. 11 900 pop), 73 km (45 miles) from San Sebastián (c. 11 600 pop), 84 km (52 miles) from Cabo Rojo (c. 10 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Maricao, Lares, Cabo Rojo.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days thirteen and in the last 365 days three hundred and twenty-five earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

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: 53 km NW of Aguadilla, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -67.54° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.738° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43 km Depth of the event in kilometers.
Place 53km NW of Aguadilla, 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 2016-01-31 22:13:56 Time when the event occurred. UTC/GMT
Updated 2016-01-31 22:28:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 234 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 39 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.35393622 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 183.6 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 pr16031004 Id of event.
Event Code 16031004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16031004, A comma-separated list of event ids that are associated to an event.

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