Researchers have identified a new connection between two different types of natural disasters: hurricanes and earthquakes.
Large-scale hurricanes can shake the seafloor in a fashion similar to earthquakes, a phenomenon which can last for several days. This type of earthquakes seems to be quite common, but they were not observed in the past as researchers believed that they were seismic background noise.
The phenomenon has been named stormquake, and it is quite interesting, especially if we take into account the fact that it takes place on the seafloor. Unlike normal earthquakes there are no risks for humans since one is present on the seafloor when they take place.
Some may fear stormquakes, but they are harmless in the long run. It is well-known that storms can generate giant waves in the sea, which lead to the appearance of different types of waves. The secondary waves can interact with the seafloor in select areas, forcing it to shake. It seems that the prime hot zones are areas where they are large continental shelves and flatlands.
The team of researchers who investigated the phenomena for almost nine years observed over 14,077 stormquakes spread across several regions, among which we can count the Golf Of Mexico, Nova Scotia, British Colombia, and others. One interesting fact is that the stormquakes appear to be seasonal since they don’t place between May and August.
To measure their intensity, the researchers relied on an advanced type of military sensor Data collected during the study infers that large-scale hurricanes like Ike and Irene can trigger a large number of stormquakes as they travel.
The new data was well-received by a large number of researchers who will pay more attention to the noises which are present in seismic reading in an attempt to learn more information about the environment and related event.