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Minor World Earthquakes Magnitude -3.9

Earthquake: M 3.1 quake strikes near San Juan in Puerto Rico

Earthquake location 18.9904S, -65.9692WA minor earthquake magnitude 3.1 (mg/mb) has striked on Saturday, 59 kilometers (37 miles) from San Juan in Puerto Rico. The temblor was reported at 10:30:58 / 10:30 pm (local time epicenter) at a depth of 18 km (11 miles). Global time of event 2014-12-28 02:30:58 UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -65.9692 West, latitude 18.9904 North, depth 18 km.

Close countries, Puerto Rico (c. 3 917 000 pop). The epicenter was 60 km (37 miles) from San Juan (c. 418 100 pop), 69 km (43 miles) from Bayamón (c. 203 500 pop), 68 km (42 miles) from Carolina (c. 170 400 pop), 72 km (45 miles) from Guaynabo (c. 81 400 pop), 71 km (44 miles) from Trujillo Alto (c. 54 200 pop). Nearest city, towns to epicentrum/hypocenter was Vega Baja, Vega Alta, Pájaros.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 59 km NNE of San Juan, Puerto Rico.

More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.9692° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9904° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 18 km Depth of the event in kilometers.
Place 59km NNE of San Juan, 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 2014-12-28 02:30:58 Time when the event occurred. UTC/GMT
Updated 2014-12-28 03:00:34 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 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 20 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.68631288 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 234 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 pr14362000 Id of event.
Event Code 14362000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS pr14362000 A comma-separated list of event ids that are associated to an event.

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