NIED Hi-net β Ver. [High Sensitivity Seismograph Network Japan]

Summary / Results
- Summary / Results
- Top Page
- What is Hi-net?
- How to use the data
- Basic knowledge for earthquake and seismology (in Japanese)
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- Topics of slow event (in Japanese)
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- SHINGEN-Kun (in Japanese)
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NIED Hi-net
High Sensitivity Seismograph Network Japan
Hypocenter / Waveform
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- AQUA System
- What is "AQUA" System?
  (in Japanese)
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  (in Japanese)
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  (in Japanese)
- Continuous Waveform Images
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- Teleseismic Waveform
NIED Hi-net
High Sensitivity Seismograph Network Japan
Station Information
- Station Information
- Searching Station (in Japanese)
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NIED Hi-net
High Sensitivity Seismograph Network Japan
FAQ / Registration
- FAQ / Registration
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NIED Hi-net
High Sensitivity Seismograph Network Japan
For Registered Users
- Login / For Registered Users
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- Continuous waveform data download
- Download site for longer-time data or data before March 2004
- Event waveform data download
- Preliminary Catalog by the Hi-net Automatic System
- JMA Unified Hypocenter Catalogs
- Epicentral distribution of deep low-frequency tremor in southwest Japan
- Catalog Download
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- Borehole Sensors Maintenance History
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- Hi-net WIN Channels Table
- Reporting the Research Result
- Manual / Tools
NIED Hi-net
High Sensitivity Seismograph Network Japan

█ 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)	Sep 20, 2021 07:33:15.58
Latitude	37.745N
Longitude	141.807E
Depth	45.5km
Magnitude	3.3

█ Earthquake Information by AQUA system

Mechanism Solution Catalog

	An earthquake occurred in/around the "E OFF FUKUSHIMA PREF" on Sep 20, 01:11 (JST).
	- Sep 20, 2021 01:12:25 (JST) Announcement - Sep 20, 2021 01:16:14 (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, 2021:	The guidance of the updating user account 2021.
Aug 01, 2019:	Software to show 3D seismic velocity structure beneath Japan renewal
Jun 14, 2019:	Digital Object Identifiers (DOIs) for Datasets at NIED��s seismograph networks (MOWLAS)

█ Recent Large Earthquake
Sep 19, 2021 (JST) HIDA MOUNTAINS REGION M4.7

- Criteria - Epicenter on the GSI maps - Back number
◤Earthquake Information		↓ Clickable
Hypocenter Region	HIDA MOUNTAINS REGION
Origin Time (JST)	Sep 19, 2021 17:18:30.77
Latitude	36.35N
Longitude	137.62E
Depth	5km
Magnitude	4.7

◤Mechanism Solution Information
Plane1 Strike/Dip	85.7˚/70.0˚
Plane2 Strike/Dip	182.2˚/72.7˚
P-Axis Azimuth/Take-off	313.6˚/88.2˚
T-Axis Azimuth/Take-off	44.5˚/63.1˚

▶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.