RSS feed source: USGS Earthquake Hazards Program

Fri, 24 Oct 2025, 06:58 | BY: EARTHQUAKEMONITOR

A magnitude 4.0 earthquake near Inzai, Inzai-shi, Chiba, Japan, was reported only 10 minutes ago by the European-Mediterranean Seismological Centre (EMSC), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at an intermediate depth of 70. km beneath the epicenter early afternoon on Friday, October 24th, 2025, at 3:47 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by Japan’s National Research Institute for Earth Science and Disaster Resilience (NIED), which listed it as a magnitude 4.3 earthquake. A third agency, the citizen-seismograph network of RaspberryShake, reported the same quake at magnitude 4.0.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Shiroi (pop. 62,400) located 3 km from the epicenter, Inzai (pop. 105,500) 7 km away, Yachiyo (pop. 199,500) 8 km away, Kamagaya (pop. 109,900) 9 km away, Abiko (pop. 131,800) 11 km away, Kashiwa (pop. 433,400) 13 km away, Narashino (pop. 176,200) 14 km away, Chiba (pop. 979,800) 22 km away, Tokyo (pop. 8,336,600) 39 km away, and Yokohama (pop. 3,761,600) 58 km away.

If you

Click this link to continue reading the article on the source website.

RSS feed source: USGS Earthquake Hazards Program

Support Us – Help Us Enhance Our Services! We’re passionate about delivering the latest volcano and earthquake data from around the globe — just for you. However, maintaining our website and free apps requires significant time, effort, and resources.
Your support helps us expand our hardware and software capabilities and empowers our dedicated editorial team. Our mission is to provide uninterrupted, real-time updates whenever an earthquake strikes or a volcano erupts — and your donations make this possible. Every contribution, big or small, is deeply appreciated. If you find our information valuable and want to help us add new features, create compelling content, and improve our technology, please consider making a donation: Donate with PayPal: Planned Features: Improved multilingual support Tsunami alerts Faster responsiveness Thanks to your past donations, we have recently added: Design upgrades Detailed earthquake statistics Additional seismic data sources Download the Volcanoes & Earthquakes app to stay among the first to receive the fastest seismic and volcano alerts online:
Android | iOS

Thank you for being part of our mission!

Click this link to continue reading the article on the source website.