How Strong Is A 9.0 Earthquake?

What is the atomic bomb equivalent to a 9.0 earthquake?

A magnitude 4.0 earthquake is only equivalent to about 6 tons of TNT explosives, but because the Richter scale is a base-10 logarithmic scale, the amount of energy released increases quickly: A magnitude 5.0 earthquake is about 200 tons of TNT, magnitude 6.0 is 6,270 tons, 7.0 is 199,000 tons, 8.0 is 6,270,000 tons, ….

Is a magnitude 9 earthquake possible?

A 9.0 earthquake is also possible in Alaska, the most earthquake-prone state in the U.S. In 1964, the Aleutian fault separating the Pacific and North American plates ruptured near the city of Anchorage, resulting in a 9.2-magnitude earthquake the second largest ever recorded on a seismograph.

What’s the longest an earthquake can last?

The earthquake lasted between 8 and 10 minutes (one of the longest ever recorded), and lifted the ocean floor several meters, creating a tsunami with 30-meter waves that devastated whole communities.

Is a 10.0 earthquake possible?

No, earthquakes of magnitude 10 or larger cannot happen. The magnitude of an earthquake is related to the length of the fault on which it occurs. … No fault long enough to generate a magnitude 10 earthquake is known to exist, and if it did, it would extend around most of the planet.

Can an earthquake split the earth?

There are no internal forces that could split the Earth, and Earthquakes cannot extend into the fluid or deep plastic layers of the Earth. However, a direct head-on collision of a very large asteroid or dwarf planet could split the Earth, although not into two hemispheres – more like a trillion fragments.

Can a tsunami hit Seattle?

Tsunamis generated in the Pacific Ocean off Washington’s coast will not have as great of an effect in Seattle as they will on the Pacific Coast, but low-lying areas may experience flooding, and strong currents will likely be present in Puget Sound for hours after the earthquake.

Will the Big One cause a tsunami?

And, no, the quake would not cause a tsunami, despite what movies would have you believe. … Narrator: The quake could kill about 1,800 people and leave 50,000 or more with injuries. While people could die from falling debris and collapsed structures, the highest death toll would be from fires.

What would a 10.0 earthquake do?

A magnitude 10 quake would likely cause ground motions for up to an hour, with tsunami hitting while the shaking was still going on, according to the research. Tsunami would continue for several days, causing damage to several Pacific Rim nations.

Are earthquakes hard to predict?

There is currently no way to reliably predict when an earthquake will happen, its strength or length. Earthquakes can vary in their magnitude, the size of the earthquake at its source, and length, lasting from seconds to minutes. Research has shown, that shaking of an earthquake displays a characteristic pattern.

What is the atomic bomb equivalent to a 8.0 earthquake?

TL;DR: Calculations and estimates of the US and British geological surveys as well as seismic data gained from underground nuclear testing show earthquakes with magnitudes of 7.0 to 8.0 on the Richter scale to equal yields between 0.2 and 15 Megatons of TNT.

What does an 8.0 earthquake feel like?

Higher Magnitude Earthquakes Feel Stronger All things equal, an earthquake with a higher MW rating will shake you a lot more than a quake with a lower rating. An M 4.0 earthquake could feel like a large truck driving by, while an M 8.0 quake could shake you so much you cannot stand.

What is the most dangerous earthquake in the world?

Science Center ObjectsMagAlternative Name1.9.5Valdivia Earthquake2.9.21964 Great Alaska Earthquake, Prince William Sound Earthquake, Good Friday Earthquake3.9.1Sumatra-Andaman Islands Earthquake, 2004 Sumatra Earthquake and Tsunami, Indian Ocean Earthquake4.9.1Tohoku Earthquake16 more rows

How long does a 9.0 earthquake last for?

five minutesA magnitude 9.0 earthquake can last for five minutes or longer, and the amount of energy released is about 1,000 times greater than that of a 7.0.

What would a 9.0 earthquake do?

A magnitude-9.0 earthquake would likely give way along the whole north-south extent of the subduction zone, but it’s not well known how far east the shake-producing area would extend, approaching the area beneath major cities such as Seattle and Portland.

Where is the safest place to be during an earthquake?

The best move is getting under a strong table or desk. If no sturdy object is available, get next to an interior wall with no windows. Finally, HOLD ON to your shelter if you have one, as the temblor will likely involve great shaking. If you have no shelter, hold on to your neck and head with both arms and hands.