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Earthquake Map

Displays information related to earthquakes, such as detailed seismic intensity, magnitude, epicenter, etc.
The currently available information categories are:

Earthquake Early Warning (Alert, Forecast)

Quick Earthquake Report (Regional Intensity)

Epicenter Information (Epicenter, Magnitude)

Epicenter & Earthquake Information (Epicenter, Magnitude, Regional Intensity)

Detailed Earthquake Information (Detailed Intensity, Epicenter, Magnitude)

Overseas Earthquake Information (Magnitude Only)

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Shake Level

Displays the current shake level.
The shake level (Lv.) explanation table is as follows:

≥ 50：Shaking not felt.

≥ 100：Shaking felt by most people.

≥ 500：Strong shaking.

≥ 1000：Very strong shaking. Difficult to stand.

≥ 2000：Severe shaking. Difficult to walk.

≥ 3000：Catastrophic shaking. Ground may crack.

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Tsunami Information

Displays the current tsunami information, including level, region name, height, and arrival time.
Details are as follows:

Special arrival times:

Arrival of initial tsunami confirmed (When tsunami has arrived)

Tsunami arrival expected (When tsunami should have arrived)

Tsunami will arrive soon (When tsunami is expected to arrive shortly)

Height:

HUGE: Equivalent to Major Tsunami Warning

Major Tsunami Warning: 10m+, 10m, 5m

HIGH: Equivalent to Tsunami Warning

Tsunami Warning: 3m

Tsunami Advisory: 1m

Note: Arrival times are estimated tsunami arrival times, not actual observed times.

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Tsunami Map

Displays the current tsunami map.
The color table is as follows:

≥ 5m: Major Tsunami Warning.
Can sweep away most concrete and wooden houses, and destroy all facilities.

≥ 3m and < 5m: Tsunami Warning.
Can sweep away most wooden houses and destroy most facilities.

≥ 1m and < 3m: Tsunami Advisory.
Be aware of possible tsunami-related damage.

Note: Okinawa and the Ogasawara Islands will be automatically hidden if the tsunami information does not apply to them.

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Tsunami Observation

Displays observed tsunami heights, including observation area, time, height, and whether the wave is rising.
Details are as follows:

Height:

≥ 3m: Disaster has already occurred.
Most houses washed away; communications largely destroyed.

≥ 1m and < 3m: Disaster has occurred.
Some houses washed away; communications restricted.

≥ 0.5m and < 1m: Disaster may occur.
Pay attention to upcoming information.

Special notes:

Over ...m: Tsunami exceeds measurement limit.
Follow information from other stations.

Weak: Tsunami too small to be effectively measured.
Pay attention to upcoming information.

Observing: Tsunami is being observed, or wave too small to have impact.
Pay attention to upcoming information.

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