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NIED Earthquake Mechanism Search
Search results are limited to 5,000 events. Monthly catalog files are available in the TEXT format.
We take coordinates (x, y, z) as (North, East, Down) for the moment tensor solutions.
*Number of events in NIED F-net catalog
  2015: Approx. 1,400 events
  2011: Approx. 6,900 events
▼ Search by using JMA Earthquake Information
Origin Time
Time Zone
Start Date
Year: Month: Day:
Hour: Min:
End Date
Year: Month: Day:
Hour: Min:
  Including starting day.
Latitude / Longitude
e.g. 20N   — 50N
E E   ※the GSI map        118E — 156E
JMA Depth
km km e.g. 30km — 100km
JMA Magnitude
Mj Mj e.g. Mj4.0 — Mj5.5
Region name
    Latitude N,  Longitude E  Radius km

▼ Mechanism Search by using NIED Moment Tensor Determination Results
e.g. 0 — 30
e.g. 0 — 30
e.g. 0 — 30
Nm   Nm e.g. 4.5e15Nm — 1.3e17Nm
MT Depth
km   km e.g. 30km — 100km
MT Magnitude
Mw   Mw e.g. Mw4.0 — Mw5.0
Variance Reduction
e.g. 60 — 100
# of Stations

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Broadband 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
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