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Light earthquake: M4.5 quake has struck near Hasaki in Japan

Posted by admin on September 18, 2025 0 Comments

A light earthquake magnitude 4.5 (ml/mb) has occurred on Thursday, 46 kilometers (29 miles) from Hasaki in Japan. The 4.5-magnitude earthquake has occurred at 18:39:19 / 6:39 pm (local time epicenter). The earthquake occurred at a depth of 25.058 km (16 miles). Exact location of event, depth 25.058 km, 141.1174° East, 35.3898° North. Global time and date of event 18/09/25 / 2025-09-18 18:39:19 / September 18, 2025 @ 6:39 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us7000qx2f. Event ids that are associated: us7000qx2f.

Nearest cities/city/villages to epicentrum/hypocenter was Edosaki, Inashiki, Ichihara (min 5000 pop). The epicenter was 93 km (58 miles) from Chiba (c. 919 700 pop), 95 km (59 miles) from Ichihara (c. 283 500 pop), 88 km (55 miles) from Sakura (c. 182 500 pop), 85 km (53 miles) from Narita (c. 100 600 pop), 74 km (46 miles) from Mobara (c. 97 300 pop), 91 km (56 miles) from Yotsukaidō (c. 86 700 pop), 78 km (48 miles) from Yachimata (c. 83 300 pop). Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected).

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

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 46 km SE of Hasaki, Japan.

More information

Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	141.1174° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	35.3898° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	25.058 km	Depth of the event in kilometers.
Place	46 km SE of Hasaki, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-09-18 18:39:19	Time when the event occurred. UTC/GMT
Updated	2025-09-18 19:29:19	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	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	39	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.513	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.36 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	137	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	us7000qx2f	Id of event.
Event Code	7000qx2f	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000qx2f,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.5 quake has struck near Hasaki in Japan

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