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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M2.8 quake strikes near San Antonio in Puerto Rico

Earthquake location 18.912S, -67.4315WA minor earthquake magnitude 2.8 (mg/mb) was reported Thursday, 58 kilometers (36 miles) from San Antonio in Puerto Rico. The temblor was reported at 08:28:08 / 8:28 am (local time epicenter) at a depth of 18 km (11 miles). Global time of event 2015-01-01 12:28:08 UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -67.4315 West, latitude 18.912 North, depth 18 km.

Close countries, Puerto Rico (c. 3 917 000 pop). The epicenter was 61 km (38 miles) from Aguadilla (c. 16 100 pop), 63 km (39 miles) from Isabela (c. 12 500 pop), 76 km (47 miles) from Añasco (c. 6 100 pop), 71 km (44 miles) from Quebradillas (c. 5 600 pop), 67 km (41 miles) from Moca (c. 5 000 pop). Nearest city, towns to epicentrum/hypocenter was Añasco, Quebradillas, Moca.

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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: 58 km NW of San Antonio, Puerto Rico.

More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -67.4315° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.912° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 18 km Depth of the event in kilometers.
Place 58km NW of San Antonio, 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 2015-01-01 12:28:08 Time when the event occurred. UTC/GMT
Updated 2015-01-01 18:17:28 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 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 11 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.53629422 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.33 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 313.2 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 pr15001007 Id of event.
Event Code 15001007 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS pr15001007 A comma-separated list of event ids that are associated to an event.

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