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

A minor earthquake with magnitude 3.1 (ml/mb) was detected on Thursday, 92 km N of Isabela, Puerto Rico (57 miles). Exact time and date of event in UTC/GMT: 23/07/20 / 2020-07-23 03:48:21 / July 23, 2020 @ 3:48 am. Event id: us6000b2f9. Ids that are associated to the earthquake: us6000b2f9. Exact location of earthquake, -67.0647° West, 19.3352° North, depth 10 km. The 3.1-magnitude earthquake was detected at 03:48:21 / 3:48 am (local time epicenter). The earthquake occurred at a depth of 10 km (6 miles).

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 one, in the last 10 days six, in the past 30 days thirty-three and in the last 365 days one thousand and eighty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 92 km N of Isabela, Puerto Rico.

Isabela Puerto Rico

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Parameter	Value	Description
Magnitude	3.1 mb	The magnitude for the event.
Longitude	-67.0647° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.3352° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	92 km 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	2020-07-23 03:48:21	Time when the event occurred. UTC/GMT
Updated	2020-07-23 03:55:27	Time when the event was most recently updated. UTC/GMT
Timezone offset		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	148	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.864	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.33 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	239	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	us6000b2f9	Id of event.
Event Code	6000b2f9	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000b2f9,	A comma-separated list of event ids that are associated to an event.

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

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