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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Ishinomaki in Japan


Earthquake location 38.1714S, 142.0631WA light earthquake magnitude 4.1 (ml/mb) has occurred on Thursday, 72 kilometers (45 miles) from Ishinomaki in Japan. All ids that are associated to the event: us6000c811. Unique identifier: us6000c811. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 142.0631° East, 38.1714° North, depth 46.28 km. The 4.1-magnitude earthquake was detected at 01:22:27 / 1:22 am (local time epicenter). Exact time and date of earthquake 08/10/20 / 2020-10-08 01:22:27 / October 8, 2020 @ 1:22 am UTC/GMT. The epicenter was at a depth of 46.28 km (29 miles).

Nearest cities/city/towns to hypocenter/epicentrum was Shiogama, Wakuya, Matsushima (min 5000 pop). Epicenter of the earthquake was 72 km (45 miles) from Ishinomaki (c. 117 200 pop), 91 km (57 miles) from Shiogama (c. 59 500 pop), 79 km (49 miles) from Yamoto (c. 32 000 pop), 91 km (57 miles) from Wakuya (c. 18 300 pop), 90 km (56 miles) from Matsushima (c. 16 400 pop). Country/countries that might be effected, Japan (c. 127 288 000 pop).

In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days eleven and in the last 365 days sixty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel it?

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: 72 km ESE of Ishinomaki, 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 142.0631° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.1714° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.28 km Depth of the event in kilometers.
Place 72 km ESE of Ishinomaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-08 01:22:27 Time when the event occurred. UTC/GMT
Updated 2020-10-30 03:55:07 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 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 2.726 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 130 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 us6000c811 Id of event.
Event Code 6000c811 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000c811, A comma-separated list of event ids that are associated to an event.

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