Has there been a quake even larger than the 1964 Great Alaska earthquake?
USGS Research Geologist Rob Witter said the science behind the answer is changing.
“The interval between quakes this size is about 600 years,” he said. “However, in the rest of the world along subduction zones, like the one that we live in, it’s been observed that earthquakes are unpredictable.” “It may have rivaled the size of the 1964 earthquake, but there’s some evidence from Kodiak Island that suggests that that earthquake may not have involved the fault underneath Kodiak Island,” he said.
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