On 19 January KVERT reported that activity at Ebeko had decreased significantly, and only steam-and-gas emissions had been observed since 12 January. The Aviation Color Code was lowered to Green (the lowest level on a four-color scale). According to observers in Severo-Kurilsk (Paramushir Island) about 7 km E, ash plumes rose to an altitude of 2 km (6,600 ft) a.s.l. and drifted 3 km SW on 19 January. The Aviation Color Code was raised to Orange (the second highest level on a four-color scale).

Geological Summary. The flat-topped summit of the central cone of Ebeko volcano, one of the most active in the Kuril Islands, occupies the northern end of Paramushir Island. Three summit craters located along a SSW-NNE line form Ebeko volcano proper, at the northern end of a complex of five volcanic cones. Blocky lava flows extend west from Ebeko and SE from the neighboring Nezametnyi cone. The eastern part of the southern crater contains strong solfataras and a large boiling spring. The central crater is filled by a lake about 20 m deep whose shores are lined with steaming solfataras; the northern crater lies across a narrow, low barrier from the central crater and contains a small, cold crescentic lake. Historical activity, recorded since the late-18th century, has been restricted to small-to-moderate explosive eruptions from the summit craters. Intense fumarolic activity occurs in the summit craters, on the outer flanks of the cone, and in lateral explosion craters.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)