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Minor earthquake 2.8 mag, 78 km NW of San Antonio, Puerto Rico

Earthquake location 18.9775S, -67.6458WA minor earthquake with magnitude 2.8 (ml/mb) was reported 78 km NW of San Antonio, Puerto Rico (48 miles) on Thursday. Exact time and date of earthquake 15/06/18 / 2018-06-15 04:42:52 / June 15, 2018 @ 4:42 am UTC/GMT. Exact location of earthquake, longitude -67.6458 West, latitude 18.9775 North, depth = 14 km. The earthquake was roughly at a depth of 14 km (9 miles). The temblor was detected at 23:42:52 / 11:42 pm (local time epicenter). Id of earthquake: pr2018166007. Event ids that are associated: pr2018166007.

In the past 24 hours, there have been eight, in the last 10 days fifteen, in the past 30 days thirty-four and in the last 365 days three hundred and eighty-four earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. There are an estimated 1,300,000 minor earthquakes in the world each year.

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. 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: 78 km NW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -67.6458° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9775° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14 km Depth of the event in kilometers.
Place 78km 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 2018-06-15 04:42:52 Time when the event occurred. UTC/GMT
Updated 2018-06-15 08:34:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 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 5 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7389 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.34 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 339 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 pr2018166007 Id of event.
Event Code 2018166007 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018166007, A comma-separated list of event ids that are associated to an event.

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