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Light earthquake: M4 quake has struck near Brenas in Puerto Rico

Posted by admin on June 21, 2019 0 Comments

Earthquake location 19.5591S, -66.1913WA light earthquake magnitude 4 (ml/mb) has occurred on Friday, 99 km N of Brenas, Puerto Rico (62 miles). The temblor was reported at 08:22:01 / 8:22 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 14 km (9 miles). All ids that are associated to the event: pt19172052, pr2019172004, us6000447f. Unique identifier: pr2019172004. Exact location, longitude -66.1913° West, latitude 19.5591° North, depth = 14 km. Global time and date of event 21/06/19 / 2019-06-21 12:22:01 / June 21, 2019 @ 12:22 pm UTC/GMT.

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been six, in the last 10 days eleven, in the past 30 days sixteen and in the last 365 days one hundred and eighty-five earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel the quake?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 99 km N of Brenas, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -66.1913° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.5591° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14 km Depth of the event in kilometers.
Place 99km 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 2019-06-21 12:22:01 Time when the event occurred. UTC/GMT
Updated 2019-06-21 13:27:19 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 246 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 ,pt,pr,us, A comma-separated list of network contributors.
Number of Stations Used 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.1335 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.39 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 216 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr2019172004 Id of event.
Event Code 2019172004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt19172052,pr2019172004,us6000447f, A comma-separated list of event ids that are associated to an event.

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