Light earthquake, 4.8 mag has occurred near Culebra in Puerto Rico

A light earthquake magnitude 4.8 (ml/mb) has occurred on Tuesday, 72 kilometers (45 miles) from Culebra in Puerto Rico. The earthquake was roughly at a depth of 8.8 km (5 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 09/03/21 / 2021-03-09 04:43:59 / March 9, 2021 @ 4:43 am. The temblor was reported at 04:43:59 / 4:43 am (local time epicenter). Exact location of event, depth 8.8 km, -65.261° West, 18.961° North. Event ids that are associated to the earthquake: pt21068000. Id of event: pt21068000.

Nearby country/countries, Puerto Rico (c. 3 917 000 pop), British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was Carolina, Naguabo, Santa Barbara (min 5000 pop). Earthquake epicenter was 98 km (61 miles) from Carolina (c. 170 400 pop), 82 km (51 miles) from Fajardo (c. 34 100 pop), 90 km (56 miles) from Tortola (c. 23 900 pop), 77 km (48 miles) from Charlotte Amalie (c. 20 000 pop), 88 km (55 miles) from Río Grande (c. 13 500 pop), 92 km (57 miles) from Isabel Segunda (c. 9 300 pop), 90 km (56 miles) from Road Town (c. 8 400 pop).

Earthquakes 4.0 to 5.0 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 sixty-three and in the last 365 days three hundred and thirty-one earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light quakes in the world each year.

Questions or comments?

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: 72 km N of Culebra, Puerto Rico.

More information

Parameter	Value	Description
Magnitude	4.8 mb	The magnitude for the event.
Longitude	-65.261° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.961° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8.8 km	Depth of the event in kilometers.
Place	72 km N of Culebra, 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	2021-03-09 04:43:59	Time when the event occurred. UTC/GMT
Updated	2021-03-09 04:49:45	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	3	The total number of felt reports
CDI	3.4	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	355	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	pt	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,pt,	A comma-separated list of network contributors.
Number of Stations Used	17	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance		Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	190.799984736	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	pt21068000	Id of event.
Event Code	21068000	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pt21068000,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.8 mb

The magnitude for the event.

Longitude

-65.261° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

18.961° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

8.8 km

Depth of the event in kilometers.

Place

72 km N of Culebra, 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

2021-03-09 04:43:59

Time when the event occurred. UTC/GMT

Updated

2021-03-09 04:49:45

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

3.4

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

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

355

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.

Sources

,pt,

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

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

190.799984736

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

pt21068000

Id of event.

Event Code

21068000

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,pt21068000,

A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.8 mag has occurred near Culebra in Puerto Rico

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