While its activity since then has waxed and waned , seismic activity increased since Tuesday morning and the volcano has started continuously shaking , said David Schneider , a geophysicist with the U.S. Geological Survey . The volcanoes are both on the Alaskan Peninsula . They began erupting weeks ago but are now showing stronger seismic activity . They are producing small amounts of lava and ash . Comment:
The volcanoes are both on the Alaskan Peninsula . They began erupting weeks ago but are now showing stronger seismic activity . They are producing small amounts of lava and ash . Comment: