Light earthquake, 4.1 mag was detected near Iwo Jima in Japan

A light earthquake magnitude 4.1 (ml/mb) strikes 246 km SSE of Iwo Jima, Japan (153 miles) on Tuesday. The earthquake was roughly at a depth of 142.17 km (88 miles). Date and time of earthquake in UTC/GMT: 23/10/17 / 2017-10-23 22:15:49 / October 23, 2017 @ 10:15 pm. Exact location of event, depth 142.17 km, 142.5235° East, 22.8406° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake has occurred at 08:15:49 / 8:15 am (local time epicenter). All ids that are associated to the event: us1000az69. Unique identifier: us1000az69.

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 one, in the past 30 days one and in the last 365 days seven earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel anything?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 246 km SSE of Iwo Jima, Japan.

Iwo Jima Japan

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Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	142.5235° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	22.8406° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	142.17 km	Depth of the event in kilometers.
Place	246km SSE of Iwo Jima, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-10-23 22:15:49	Time when the event occurred. UTC/GMT
Updated	2017-11-06 00:44:28	Time when the event was most recently updated. UTC/GMT
Timezone offset	600	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	259	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	4.247	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.46 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	162	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us1000az69	Id of event.
Event Code	1000az69	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000az69,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.1 mag was detected near Iwo Jima in Japan

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