In an interview with Alaska Public Media, AVO scientist Matt Haney described the possible appearance of an eruption. People in Anchorage would probably not be able to hear.
A Spurr eruption like the ones that occurred in 1953 and 1992, but those who were near the volcano would be able to hear it. But being so near would not be wise,” the expert said.
Because volcanic ash particles rub against one another, ash-producing eruptions may create volcanic lightning in the ash cloud. This lightning can then generate thunder,
Which can be heard further away. “More often than not, we have explosive eruptions that fragment magma and shoot ash, you know, 50,000 feet into the atmosphere.”
Mount Spurr erupted three times in 1992—in June, August, and September—while just one explosion was recorded 39 years before. Haney went on to say: