Japanese English ( β Ver. )
█ Latest Earthquake Information
The following information was automatically determined by the NIED Hi-net system.    See for details
Hypocenter Region NORTHERN CHIBA PREF
Origin Time (JST) Aug 17, 2018 05:34:04.16
Latitude 35.744N
Longitude 140.252E
Depth 56.5km
Magnitude 3.2

Hypocenter Map
█ Earthquake Information by AQUA system Mechanism Solution Catalog
An earthquake occurred in/around the "KINKAZAN REGION" on Aug 16, 19:44 (JST).
- Aug 16, 2018 19:44:26 (JST) Announcement
- Aug 16, 2018 19:48:53 (JST) Update
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 01, 2018:  The guidance of the updating user account 2018.
Mar 01, 2018:  Software to show 3D seismic velocity structure beneath Japan
Jan 07, 2015:  We started the continuous waveform data download service for ADEP.
Oct 01, 2014:  We started the continuous waveform data download service for JAMSTEC[DONET1].
█ Recent Large Earthquake
   Aug 14, 2018 (JST)   E OFF BOSO PENINSULA   M4.9
- Criteria   - Epicenter on the GSI maps   - Back number
◤Earthquake Information ↓ Clickable
Hypocenter Region E OFF BOSO PENINSULA
Origin Time (JST) Aug 14, 2018 12:35:49.14
Latitude 35.19N
Longitude 140.57E
Depth 57km
Magnitude 4.9
◤Mechanism Solution Information
Plane1 Strike/Dip 68.9˚/79.0˚
Plane2 Strike/Dip 337.9˚/85.3˚
P-Axis Azimuth/Take-off 293.0˚/78.9˚
T-Axis Azimuth/Take-off 23.8˚/85.6˚
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High Sensitivity Seismograph Network Laboratory, Network Center for Earthquake, Tsunami and Volcano,
National Research Institute for Earth Science and Disaster Resilience.
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