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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag was detected near Ishinomaki in Japan

Posted by admin on October 22, 2025 0 Comments

Earthquake location 38.4953S, 141.2888WA light earthquake magnitude 4.4 (ml/mb) has struck on Wednesday, 8 kilometers (5 miles) from Ishinomaki in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 86.686 km (54 miles). Exact location of earthquake, longitude 141.2888 East, latitude 38.4953 North, depth = 86.686 km. The 4.4-magnitude earthquake was detected at 08:50:20 / 8:50 am (local time epicenter). Id of earthquake: us6000rh8z. Event ids that are associated: us6000rh8z. Global time and date of event 15/10/25 / 2025-10-15 08:50:20 / October 15, 2025 @ 8:50 am UTC/GMT.

Close country/countries, Japan (c. 127 288 000 pop) (That might be effected). Epicenter of the event was 44 km (27 miles) from Sendai-shi (c. 1 063 100 pop), 45 km (28 miles) from Sendai (c. 1 063 100 pop), 86 km (53 miles) from Yamagata-shi (c. 254 500 pop), 9 km (5 miles) from Ishinomaki (c. 117 200 pop), 89 km (55 miles) from Kitakami (c. 93 900 pop), 30 km (19 miles) from Furukawa (c. 76 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Yanagawamachi-saiwaichō, Tōno, Shinjō.

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 two, in the past 30 days four and in the last 365 days fifty earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light earthquakes in the world each year.

How would you describe the shaking?

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. 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: 8 km N of Ishinomaki, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 141.2888° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.4953° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 86.686 km Depth of the event in kilometers.
Place 8 km N 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 2025-10-15 08:50:20 Time when the event occurred. UTC/GMT
Updated 2025-10-22 06:29:21 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 298 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 34 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.298 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 155 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 us6000rh8z Id of event.
Event Code 6000rh8z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rh8z, A comma-separated list of event ids that are associated to an event.

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