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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 12 km ENE of Yonakuni, Japan


Earthquake location 24.4941S, 123.12WA light earthquake with magnitude 4.1 (ml/mb) was reported 12 km ENE of Yonakuni, Japan (7 miles) on Friday. The earthquake was roughly at a depth of 67.21 km (42 miles). Exact location of earthquake, longitude 123.12 East, latitude 24.4941 North, depth = 67.21 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us2000arqq. Ids that are associated to the earthquake: us2000arqq. Global time and date of event 07/09/17 / 2017-09-07 21:15:02 / September 7, 2017 @ 9:15 pm UTC/GMT. The 4.1-magnitude earthquake has occurred at 05:15:02 / 5:15 am (local time epicenter).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days five and in the last 365 days thirty earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 12 km ENE of Yonakuni, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 123.12° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.4941° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 67.21 km Depth of the event in kilometers.
Place 12km ENE of Yonakuni, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-07 21:15:02 Time when the event occurred. UTC/GMT
Updated 2017-10-03 03:19:36 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 0.102 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 88 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000arqq Id of event.
Event Code 2000arqq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000arqq, A comma-separated list of event ids that are associated to an event.

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