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Minor earthquake 3 mag, 127 km N of Loiza, Puerto Rico


Earthquake location 19.5788S, -65.7645WA minor earthquake with magnitude 3 (ml/mb) was reported 127 km N of Loiza, Puerto Rico (79 miles) on Wednesday. All ids that are associated to the event: pr15343011. Unique identifier: pr15343011. Exact time and date of earthquake 09/12/15 / 2015-12-09 12:48:46 / December 9, 2015 @ 12:48 pm UTC/GMT. The 3-magnitude earthquake was detected at 08:48:46 / 8:48 am (local time epicenter). Exact location of earthquake, longitude -65.7645 West, latitude 19.5788 North, depth = 84 km. The earthquake occurred at a depth of 84 km (52 miles) below the earth’s surface.

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

Did you feel it?

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 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: 127 km N of Loiza, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -65.7645° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.5788° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 84 km Depth of the event in kilometers.
Place 127km N of Loiza, 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 2015-12-09 12:48:46 Time when the event occurred. UTC/GMT
Updated 2015-12-09 15:14:51 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 3 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.30255716 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 320.4 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 pr15343011 Id of event.
Event Code 15343011 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15343011, A comma-separated list of event ids that are associated to an event.

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