Minor earthquake, 3.38 mag has occurred near Isabela in Puerto Rico

A minor earthquake magnitude 3.38 (ml/mb) has struck on Sunday, 103 km N of Isabela, Puerto Rico (64 miles). The epicenter was at a depth of 67 km (42 miles). The 3.38-magnitude earthquake has occurred at 12:27:32 / 12:27 pm (local time epicenter). Exact location of event, longitude -67.1333 West, latitude 19.4341 North, depth = 67 km. Event id: pr2017211012. Ids that are associated to the earthquake: pr2017211012. Exact time and date of earthquake 30/07/17 / 2017-07-30 16:27:32 / July 30, 2017 @ 4:27 pm UTC/GMT.

In the past 24 hours, there have been three, in the last 10 days six, in the past 30 days thirty-one and in the last 365 days two hundred and twenty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 103 km N of Isabela, Puerto Rico.

Isabela Puerto Rico

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Parameter	Value	Description
Magnitude	3.38 mb	The magnitude for the event.
Longitude	-67.1333° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.4341° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	67 km	Depth of the event in kilometers.
Place	103km N of Isabela, 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	2017-07-30 16:27:32	Time when the event occurred. UTC/GMT
Updated	2017-07-30 17:09:41	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	176	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	10	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.9668	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.27 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	277	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	pr2017211012	Id of event.
Event Code	2017211012	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr2017211012,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.38 mag has occurred near Isabela in Puerto Rico

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