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Light earthquake, 4.5 mag was detected near Brenas in Puerto Rico

Posted by admin on August 5, 2015 0 Comments

Earthquake location 19.5207S, -66.3657WA light earthquake magnitude 4.5 (ml/mb) has occurred on Wednesday, 90 km N of Brenas, Puerto Rico (56 miles). Exact time and date of event in UTC/GMT: 05/08/15 / 2015-08-05 07:29:59 / August 5, 2015 @ 7:29 am. Id of earthquake: pr15217010. Event ids that are associated: us10002y1k, pr15217010. The temblor was reported at 03:29:59 / 3:29 am (local time epicenter). Exact location of event, longitude -66.3657 West, latitude 19.5207 North, depth = 72 km. The earthquake was roughly at a depth of 72 km (45 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been four, in the last 10 days fifty-eight, in the past 30 days ninety-seven and in the last 365 days three hundred and five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 90 km N of Brenas, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -66.3657° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.5207° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 72 km Depth of the event in kilometers.
Place 90km N of Brenas, 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 2015-08-05 07:29:59 Time when the event occurred. UTC/GMT
Updated 2015-08-05 08:40:49 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 312 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 ,us,pr, A comma-separated list of network contributors.
Number of Stations Used 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.04923225 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 262.8 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr15217010 Id of event.
Event Code 15217010 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10002y1k,pr15217010, A comma-separated list of event ids that are associated to an event.

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