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Minor earthquake 3 mag, 64 km N of Hatillo, Puerto Rico


Earthquake location 19.066S, -66.7819WA minor earthquake magnitude 3 (ml/mb) has occurred on Thursday, 64 kilometers (40 miles) from Hatillo in Puerto Rico. Date and time of earthquake in UTC/GMT: 31/12/15 / 2015-12-31 17:32:42 / December 31, 2015 @ 5:32 pm. The temblor was detected at 13:32:42 / 1:32 pm (local time epicenter). Exact location of event, longitude -66.7819 West, latitude 19.066 North, depth = 40 km. Event id: pr15365004. Ids that are associated to the earthquake: pr15365004. The earthquake was roughly at a depth of 40 km (25 miles).

Nearest cities/city/villages to epicentrum/hypocenter was Manatí, Barceloneta, Quebradillas (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 66 km (41 miles) from Arecibo (c. 49 300 pop), 73 km (45 miles) from Barceloneta (c. 22 300 pop), 77 km (48 miles) from Manatí (c. 16 100 pop), 68 km (42 miles) from Isabela (c. 12 500 pop), 65 km (40 miles) from Hatillo (c. 5 600 pop).

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

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 64 km N of Hatillo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -66.7819° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.066° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 40 km Depth of the event in kilometers.
Place 64km N of Hatillo, 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 2015-12-31 17:32:42 Time when the event occurred. UTC/GMT
Updated 2015-12-31 18:08:54 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 138 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 17 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.63241396 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 244.8 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 pr15365004 Id of event.
Event Code 15365004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15365004, A comma-separated list of event ids that are associated to an event.

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