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Minor earthquake: M3.1 quake has struck near San Juan in Puerto Rico

Posted by admin on August 7, 2015 0 Comments

Earthquake location 19.648S, -66.2444WA minor earthquake magnitude 3.1 (ml/mb) strikes 131 km N of San Juan, Puerto Rico (81 miles) on Thursday. Exact location of event, longitude -66.2444 West, latitude 19.648 North, depth = 25 km. Event id: pr15219005. Ids that are associated to the earthquake: pr15219005. The temblor was reported at 22:16:13 / 10:16 pm (local time epicenter). Global time and date of event 07/08/15 / 2015-08-07 02:16:13 / August 7, 2015 @ 2:16 am UTC/GMT. The epicenter of the earthquake was roughly 25 km (16 miles) below the earth’s surface.

Each 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. In the past 24 hours, there have been sixteen, in the last 10 days eighty-six, in the past 30 days one hundred and thirty-five and in the last 365 days three hundred and thirty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 131 km N of San Juan, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -66.2444° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.648° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25 km Depth of the event in kilometers.
Place 131km N 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 2015-08-07 02:16:13 Time when the event occurred. UTC/GMT
Updated 2015-08-07 06:10:06 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 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 3 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.41574489 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 306 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 pr15219005 Id of event.
Event Code 15219005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15219005, A comma-separated list of event ids that are associated to an event.

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