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Light earthquake: M4.8 quake has struck near southwestern Ryukyu Islands, Japan

Posted by admin on August 25, 2017 0 Comments

Earthquake location 24.9895S, 123.4363WA light earthquake with magnitude 4.8 (ml/mb) was detected on Friday, southwestern Ryukyu Islands, Japan (0 miles). Event id: us2000abxi. Ids that are associated to the earthquake: us2000abxi. The 4.8-magnitude earthquake was detected at 23:20:48 / 11:20 pm (local time epicenter). The earthquake occurred at a depth of 8.89 km (6 miles). Exact location of earthquake, 123.4363° East, 24.9895° North, depth 8.89 km. Exact time and date of earthquake 25/08/17 / 2017-08-25 23:20:48 / August 25, 2017 @ 11:20 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days fourteen earthquakes of magnitude 3.0 or greater that was reported nearby. 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. 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: southwestern Ryukyu Islands, Japan.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude 123.4363° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 24.9895° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.89 km Depth of the event in kilometers.
Place southwestern Ryukyu Islands, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-25 23:20:48 Time when the event occurred. UTC/GMT
Updated 2017-08-25 23:38:56 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 354 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 0.647 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 49 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 us2000abxi Id of event.
Event Code 2000abxi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000abxi, A comma-separated list of event ids that are associated to an event.

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