Tsunamis are ocean waves triggered by large earthquakes that occur near or under the ocean, volcanic eruptions, submarine landslides, and by onshore landslides in which large volumes of debris fall into the water.
Although earthquake magnitude is one factor that affects tsunami generation, there are other important factors to consider. The earthquake must be a shallow marine event that displaces the seafloor.
Although both are sea waves, a tsunami and a tidal wave are two different and unrelated phenomena. A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth.
Go to the Earthquake Hazards Program Latest Earthquakes Map. There are three columns which make up the real-time earthquake map. The left column comprises the list of earthquakes, the center c
How long did the magnitude 9.0 earthquake off the west coast of northern Sumatra shake? (What was the duration?)
The actual rupture duration on the fault (the time it took for the earthquake to take place on the fault and rupture the entire length) was approximately 3 to 4 minutes.
Felt earthquakes on Mount Hood (Oregon) occur every 2 years on the average.
How has the occurrence of the magnitude 9.0 earthquake off the west coast of northern Sumatra affected the probability of another great earthquake?
The occurrence of this earthquake will have produced a redistribution of tectonic stresses along and near the boundary between the India plate and the Burma plate.
Volcano eruptions have occurred shortly after earthquakes and they may be linked, but scientists are still debating the topic. Notably, an Andean volcano (Cordon Caulle) began erupting 2 days after the magnitude 9.6 1960 Chile earthquake.
No. The magnitude of an earthquake is related to the length of the fault on which it occurs. That is, the longer the fault, the larger the earthquake.
Is there a relationship between large earthquakes (>M6) that occur along major fault zones and nearby volcanic eruptions?
Sometimes, yes. A few historic large regional earthquakes (>M 6) are considered by scientists to be related to a subsequent eruption or to some type of unrest at a nearby volcano.
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