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Minor earthquake: M2.8 quake has struck near Culebra in Puerto Rico

Earthquake location 18.0342S, -65.1309WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Friday, 34 kilometers (21 miles) from Culebra in Puerto Rico. The 2.8-magnitude earthquake has occurred at 02:11:48 / 2:11 am (local time epicenter). Exact time and date of earthquake 02/10/15 / 2015-10-02 06:11:48 / October 2, 2015 @ 6:11 am UTC/GMT. Event id: pr15275001. Ids that are associated to the earthquake: pr15275001. The epicenter was at a depth of 13 km (8 miles). Exact location of event, longitude -65.1309 West, latitude 18.0342 North, depth = 13 km.

Earthquake epicenter was 53 km (33 miles) from Saint Croix (c. 50 600 pop), 64 km (40 miles) from Fajardo (c. 34 100 pop), 72 km (44 miles) from Tortola (c. 23 900 pop), 75 km (46 miles) from Humacao (c. 20 400 pop), 40 km (25 miles) from Charlotte Amalie (c. 20 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Humacao, Luquillo, Tortola (min 5000 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop), British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop) (That might be effected).

In the past 24 hours, there have been three, in the last 10 days twelve, in the past 30 days twenty-four and in the last 365 days one hundred and thirty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 34 km SSE of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -65.1309° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.0342° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13 km Depth of the event in kilometers.
Place 34km SSE 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 2015-10-02 06:11:48 Time when the event occurred. UTC/GMT
Updated 2015-10-02 08:20:53 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 121 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.30722383 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.4 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147.6 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 pr15275001 Id of event.
Event Code 15275001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15275001, A comma-separated list of event ids that are associated to an event.

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