Japanese English ( β Ver. )
counter
█ Latest Earthquake Information
The following information was automatically determined by the NIED Hi-net system.    See for details
Hypocenter Region E OFF FUKUSHIMA PREF
Origin Time (JST) Apr 02, 2023 01:35:50.73
Latitude 37.621N
Longitude 141.675E
Depth 44.6km
Magnitude 3.2

Hypocenter Map
█ Earthquake Information by AQUA system Mechanism Solution Catalog
An earthquake occurred in/around the "E OFF MIYAGI PREF" on Apr 01, 22:57 (JST).
- Apr 01, 2023 22:57:17 (JST) Announcement
You may have to reload the web page to see the latest information.
What is "AQUA" System? (in Japanese)
Max . Amplitude Distribution Maps (in Japanese)
█ Notice of Hi-net Past Notice
Mar 20, 2023:  Software to show 3D seismic velocity structure beneath Japan renewal
Mar 01, 2023:  The guidance of the updating user account 2023.
Jul 29, 2022:  Information about maintenance at stations N.ST1H, 2H, 3H, 4H, 5H, and 6H
Jun 14, 2019:  Digital Object Identifiers (DOIs) for Datasets at NIED”Ēs seismograph networks (MOWLAS)
█ Recent Large Earthquake
   Apr 01, 2023 (JST)   OFF N NIIGATA PREF   M5.1
- Criteria   - Epicenter on the GSI maps   - Back number
◤Earthquake Information ↓ Clickable
Earthquake Information
Hypocenter Region OFF N NIIGATA PREF
Origin Time (JST) Apr 01, 2023 18:41:12.89
Latitude 38.33N
Longitude 138.84E
Depth 28km
Magnitude 5.1
◤Mechanism Solution Information
Mechanism Solution Information
Plane1 Strike/Dip 224.3˚/52.4˚
Plane2 Strike/Dip 14.8˚/41.5˚
P-Axis Azimuth/Take-off 300.9˚/84.4˚
T-Axis Azimuth/Take-off 191.0˚/16.1˚
Policies  |  ▶How to use the data  |  ▶Contact us  |  ▶Web site for mobile phones (in Japanese)
We, NIED, do not deliver any e-mails of immediate seismic information obtained by the AQUA system.
In addition, please understand that we prohibit the redistribution of the seismic data. For more information, please read How to use the Hi-net data and FAQ.
High Sensitivity Seismograph Network Laboratory, Network Center for Earthquake, Tsunami and Volcano,
National Research Institute for Earth Science and Disaster Resilience.
3-1 Tennodai, Tsukuba City, Ibaraki Prefecture, 305-0006, JAPAN
Copyright © National Research Institute for Earth Science and Disaster Resilience, All rights Reserved.