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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.5 quake has struck near Izu Islands, Japan region

Posted by admin on September 30, 2015 0 Comments

Earthquake location 31.2375S, 142.4943WA light earthquake magnitude 4.5 (ml/mb) has occurred on Friday, Izu Islands, Japan region (0 miles). Exact location of event, longitude 142.4943 East, latitude 31.2375 North, depth = 23.49 km. The epicenter was at a depth of 23.49 km (15 miles). Unique identifier: us20003mzr. Ids that are associated to the event: us20003mzr. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 12:49:01 / 12:49 pm (local time epicenter). Global time and date of event 11/09/15 / 2015-09-11 03:49:01 / September 11, 2015 @ 3:49 am UTC/GMT.

In the past 24 hours, there have been five, in the last 10 days twelve, in the past 30 days thirteen and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that was reported nearby. Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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: Izu Islands, Japan region. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 142.4943° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.2375° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 23.49 km Depth of the event in kilometers.
Place Izu Islands, Japan region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-11 03:49:01 Time when the event occurred. UTC/GMT
Updated 2015-09-30 04:47:22 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 312 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 4.136 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 138 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 us20003mzr Id of event.
Event Code 20003mzr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003mzr, A comma-separated list of event ids that are associated to an event.

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