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Minor earthquake, 3.1 mag was detected near Culebra in Puerto Rico


Earthquake location 18.809S, -65.3133WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Saturday, 56 kilometers (35 miles) from Culebra in Puerto Rico. Exact location of earthquake, longitude -65.3133 West, latitude 18.809 North, depth = 74 km. The temblor was picked up at 03:23:13 / 3:23 am (local time epicenter). The earthquake occurred at a depth of 74 km (46 miles). Id of earthquake: pr15213009. Event ids that are associated: pr15213009. Global time and date of event 01/08/15 / 2015-08-01 07:23:13 / August 1, 2015 @ 7:23 am UTC/GMT.

Nearest cities/city/villages to epicentrum/hypocenter was Naguabo, Santa Barbara, Canovanas (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop). Epicenter of the earthquake was 65 km (40 miles) from Fajardo (c. 34 100 pop), 66 km (41 miles) from Charlotte Amalie (c. 20 000 pop), 72 km (45 miles) from Río Grande (c. 13 500 pop), 75 km (46 miles) from Isabel Segunda (c. 9 300 pop), 78 km (49 miles) from Canovanas (c. 8 400 pop).

In the past 24 hours, there have been eight, in the last 10 days fifty-five, in the past 30 days eighty-nine and in the last 365 days four hundred and thirty-eight earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Did you feel the quake?

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: 56 km N of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.3133° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.809° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 74 km Depth of the event in kilometers.
Place 56km N of Culebra, 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 2015-08-01 07:23:13 Time when the event occurred. UTC/GMT
Updated 2015-08-01 12:24:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.49856498 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.01 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 252 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 pr15213009 Id of event.
Event Code 15213009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15213009, A comma-separated list of event ids that are associated to an event.

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