The Japan Meteorological Agency (JMA) lowered the Alert Level for Yakedake to 1 (on a scale of 1-5) at 1100 on 18 April, noting that seismicity has remind at low levels after a period of elevated seismicity was recorded during 3-9 March. JMA warned climbers to be alert to any changes at the volcano and to wear a helmet.

Geological Summary. Yakedake rises above the popular resort of Kamikochi in the Northern Japan Alps. The small dominantly andesitic stratovolcano, one of several Japanese volcanoes named Yakedake or Yakeyama ("Burning Peak" or "Burning Mountain"), was constructed astride a N-S-trending ridge between the older volcanoes of Warudaniyama and Shirataniyama. Akandanayama, about 4 km SSW, is a stratovolcano with lava domes that was active into the Holocene. A 300-m-wide crater is located at the summit, and explosion craters are found on the SE and N flanks. Frequent small-to-moderate phreatic eruptions have occurred during the 20th century. On 11 February 1995 a hydrothermal explosion in a geothermal area killed two people at a highway construction site.

Source: Japan Meteorological Agency (JMA)