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Light earthquake: M4.6 quake has struck near Hachijo-jima in Japan

Posted by admin on July 23, 2015 0 Comments

Earthquake location 32.4788S, 141.1455WA light earthquake with magnitude 4.6 (ml/mb) was detected on Thursday, 142 km ESE of Hachijo-jima, Japan (88 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 23/07/15 / 2015-07-23 11:24:55 / July 23, 2015 @ 11:24 am UTC/GMT. Event id: us20002zh5. Ids that are associated to the earthquake: us20002zh5. Exact location of earthquake, 141.1455° East, 32.4788° North, depth 35.35 km. The 4.6-magnitude earthquake was detected at 20:24:55 / 8:24 pm (local time epicenter). The earthquake occurred at a depth of 35.35 km (22 miles) below the earth’s surface.

There are an estimated 13,000 light earthquakes in the world each year. 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 two and in the last 365 days eleven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

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. 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: 142 km ESE of Hachijo-jima, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 141.1455° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 32.4788° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.35 km Depth of the event in kilometers.
Place 142km ESE of Hachijo-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 2015-07-23 11:24:55 Time when the event occurred. UTC/GMT
Updated 2015-07-23 12:35:41 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 326 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 1.288 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 115 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 us20002zh5 Id of event.
Event Code 20002zh5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20002zh5, A comma-separated list of event ids that are associated to an event.

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