When a volcano is inactive, it usually remains quiet. Nevertheless, the Iliamna Volcano in Alaska is challenging our previous understanding of volcanoes by exhibiting rumbling activity despite being classified as dormant for over a century.
As reported by ABC News, researchers assert that the Iliamna Volcano, a significant geological feature located in the Alaskan wilderness, has been consistently rumbling, particularly in recent days. Indeed, reports suggest that the volcano experienced an almost continuous series of seismic events over several hours.
While some theorize that this activity could indicate an upcoming eruption, others, including NASA’s Earth Observatory, believe that it is likely just rumbling caused by avalanches in the vicinity.
Over a century of inactivity
Although it’s undeniable that the nearly 10,000-foot Iliamna Volcano could cause significant destruction if it were to erupt today, NASA doesn’t anticipate an imminent eruption. According to a statement from NASA’s Earth Observatory, the last eruption of the volcano occurred in 1867. Nonetheless, it continues to exhibit “rumbling” behavior every few years. The agency posits that this rumbling is probably merely a result of nearby avalanches, which have historically been detected by seismic and infrasound equipment.
The primary reason this region is particularly susceptible to avalanches is due to the distinct blend of glacial landscapes and the heated volcanic rock that lies beneath the surface here. The mountain harbors 10 distinct glaciers, making it particularly conducive to avalanche occurrences. Nevertheless, the continued rumbling is sufficient to prompt scientists to monitor the volcano closely. We’ve already witnessed signs of another long-inactive volcano becoming active in Alaska.
If an eruption were to occur, however, the consequences would be devastating, which is why scientists remain vigilant regarding Mount Iliamna. Fortunately, the readings observed this time seem consistent with previous measurements related to avalanches. Therefore, it appears there is no immediate cause for concern regarding the Iliamna Volcano erupting again. We can only hope that this observation holds true as scientists persist in their monitoring efforts.
