Kusatsu-Shiranesan (Mt. Kusatsu-Shirane) – Portal –

This Portal webpage shows relevant information on Kusatsu-Shiranesan (Mt. Kusatsu-Shirane) that erupted at 09:59 JST on 23 January 2018 and its afterward situation.

Volcanic Information

• Volcanic Warnings (Japan)
• Volcanic Warnings (Kanto/Chubu)
• Volcanic Alert Levels (1, 2) (in Japanese)
• Hazard Map (in Japanese)
• Eruption Notice
• Volcanic Ash Fall Forecasts
• Volcanic Ash Advisories (informaton for aircraft operations)
• Overview

Weather Information

• Weather Warnings/Advisories (Gumma, Nagano)
• Real-time Landslide Risk Map
• Daily Forecasts (Gumma, Nagano)
• One-week Forecasts (Gumma, Nagano)
• Analysis and Forecast of Precipitation
• High-resolution Precipitation Nowcasts
• Latest Weather Observation (Koshin) Precipitation / Wind