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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Chichi-shima in Japan

Posted by admin on August 18, 2015 0 Comments

Earthquake location 27.6893S, 139.9035WA light earthquake magnitude 4.1 (ml/mb) has struck on Tuesday, 238 km WNW of Chichi-shima, Japan (148 miles). Exact location of event, depth 478.08 km, 139.9035° East, 27.6893° North. The epicenter of the earthquake was roughly 478.08 km (297 miles) below the earth’s surface. The 4.1-magnitude earthquake was detected at 16:02:51 / 4:02 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 28/07/15 / 2015-07-28 07:02:51 / July 28, 2015 @ 7:02 am. All ids that are associated to the event: us100032vg. Unique identifier: us100032vg.

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 238 km WNW of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 139.9035° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.6893° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 478.08 km Depth of the event in kilometers.
Place 238km WNW of Chichi-shima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-28 07:02:51 Time when the event occurred. UTC/GMT
Updated 2015-08-18 09:01:41 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 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 2.112 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 71 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 us100032vg Id of event.
Event Code 100032vg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100032vg, A comma-separated list of event ids that are associated to an event.

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