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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 273 km SSW of Hachijo-jima, Japan

Posted by admin on August 31, 2017 0 Comments

Earthquake location 30.8136S, 138.6594WA light earthquake magnitude 4.1 (ml/mb) has occurred on Tuesday, 273 km SSW of Hachijo-jima, Japan (170 miles). The 4.1-magnitude earthquake has occurred at 03:21:23 / 3:21 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us2000a84n. Unique identifier: us2000a84n. The epicenter was at a depth of 387.97 km (241 miles). Global time and date of event 14/08/17 / 2017-08-14 18:21:23 / August 14, 2017 @ 6:21 pm UTC/GMT. Exact location of earthquake, longitude 138.6594 East, latitude 30.8136 North, depth = 387.97 km.

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 nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 273 km SSW of Hachijo-jima, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 138.6594° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 30.8136° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 387.97 km Depth of the event in kilometers.
Place 273km SSW 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 2017-08-14 18:21:23 Time when the event occurred. UTC/GMT
Updated 2017-08-31 23:12:32 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 2.489 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 90 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 us2000a84n Id of event.
Event Code 2000a84n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a84n, A comma-separated list of event ids that are associated to an event.

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