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Minor earthquake: M3.1 quake has struck near Luquillo in Puerto Rico

Earthquake location 18.8838S, -65.4113WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Saturday, 65 kilometers (40 miles) from Luquillo in Puerto Rico. Exact location of earthquake, longitude -65.4113 West, latitude 18.8838 North, depth = 50 km. The 3.1-magnitude earthquake was detected at 11:59:06 / 11:59 am (local time epicenter). All ids that are associated to the event: pr17091009. Unique identifier: pr17091009. The epicenter of the earthquake was roughly 50 km (31 miles) below the earth’s surface. Global time and date of event 01/04/17 / 2017-04-01 15:59:06 / April 1, 2017 @ 3:59 pm UTC/GMT.

Nearby country/countries, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was Carolina, Charlotte Amalie, Canovanas (min 5000 pop). Epicenter of the event was 80 km (50 miles) from Carolina (c. 170 400 pop), 67 km (42 miles) from Fajardo (c. 34 100 pop), 79 km (49 miles) from Charlotte Amalie (c. 20 000 pop), 71 km (44 miles) from Río Grande (c. 13 500 pop), 76 km (47 miles) from Canovanas (c. 8 400 pop).

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

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: 65 km NNE of Luquillo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.4113° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8838° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 50 km Depth of the event in kilometers.
Place 65km NNE of Luquillo, 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 2017-04-01 15:59:06 Time when the event occurred. UTC/GMT
Updated 2017-04-01 16:20:54 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 148 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 5 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.58480325 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 273.6 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 pr17091009 Id of event.
Event Code 17091009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17091009, A comma-separated list of event ids that are associated to an event.

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