What are 10 trivia facts about earthquakes?
Well I'm doing a project about earthquakes and a need 10 trivia facts about earthquakes.
- SmitaLv 41 decade agoBest Answer
1. The largest recorded earthquake in the United States was a magnitude 9.2 that struck Prince William Sound, Alaska on Good Friday, March 28, 1964 UTC.
2. The largest recorded earthquake in the world was a magnitude 9.5 (Mw) in Chile on May 22, 1960.
3. The earliest reported earthquake in California was felt in 1769 by the exploring expedition of Gaspar de Portola while the group was camping about 48 kilometers (30 miles) southeast of Los Angeles.
4. Before electronics allowed recordings of large earthquakes, scientists built large spring-pendulum seismometers in an attempt to record the long-period motion produced by such quakes. The largest one weighed about 15 tons. There is a medium-sized one three stories high in Mexico City that is still in operation.
5. The average rate of motion across the San Andreas Fault Zone during the past 3 million years is 56 mm/yr (2 in/yr). This is about the same rate at which your fingernails grow. Assuming this rate continues, scientists project that Los Angeles and San Francisco will be adjacent to one another in approximately 15 million years.
6. The East African Rift System is a 50-60 km (31-37 miles) wide zone of active volcanics and faulting that extends north-south in eastern Africa for more than 3000 km (1864 miles) from Ethiopia in the north to Zambezi in the south. It is a rare example of an active continental rift zone, where a continental plate is attempting to split into two plates which are moving away from one another.
7. The first "pendulum seismoscope" to measure the shaking of the ground during an earthquake was developed in 1751, and it wasn't until 1855 that faults were recognized as the source of earthquakes.
8. The world's deadliest recorded earthquake occurred in 1556 in central China. It struck a region where most people lived in caves carved from soft rock. These dwellings collapsed during the earthquake, killing an estimated 830,000 people. In 1976 another deadly earthquake struck in Tangshan, China, where more than 250,000 people were killed.
9. The deepest earthquakes typically occur at plate boundaries where the Earth's crust is being subducted into the Earth's mantle. These occur as deep as 750 km (400 miles) below the surface.
10. The earliest recorded evidence of an earthquake has been traced back to 1831 BC in the Shandong province of China, but there is a fairly complete record starting in 780 BC during the Zhou Dynasty in China.
now i pulled this from online. if you're online already posting this question, why didn't you just do a quick google search.
- 1 decade ago
1. In 1769, the earliest reported earthquake was felt by Spanish explorers. It took place about 30 miles southeast of Los Angeles.
2. The average range of motion along the San Andreas fault zone is about 2 inches per year, about the same rate of growth of human fingernails.
3. When primitive seismographs were first built in 1751, no one knew the reason earthquakes happened. That wasn't discovered until 1855, when faults were determined to be the source of earthquakes.
4. Many people think that the words "tsunami" and "tidal wave" are interchangeable. However, they are two unrelated phenomena. A tidal wave is a large wave produced by high winds, while tsunamis are initially caused by an underwater earthquake, which displaces ocean water relatively quickly.
5. In an earthquake, the hypocenter is the origin of the rupture of the fault. The epicenter of the earthquake is located directly above the hypocenter, on the surface.
6. It is a popular opinion that more damage was done during the fire after the 1906 San Francisco earthquake than by the earthquake alone.
7. A seiche ("SAYSH") is the movement of water in a body of water caused by the ground shaking in an earthquake. It often happens in swimming pools during a California earthquake. A seiche can continue from minutes to hours after original force is gone. It can also be caused by wind or tides.
8. Every year, southern California has an average of about 10,000 earthquakes. The majority of these quakes are minor and go unnoticed by the general public. Only a few hundred of these quakes are above an M3.0, and about 15-20 are greater than M4.0. If a large earthquake takes place, the aftershocks will continue for many months.
9. The magnitude of an earthquake is the measure of how big an earthquake is. It does not vary with location. However, the intensity of an earthquake is how much shaking is generated by an earthquake. The intensity does vary with location.
10. There are many people who attribute earthquakes with muggy weather or unseasonably cold weather, but science determines that there is no correlation between earthquakes and weather. There is an equal likelihood of earthquakes in warm, cold, rainy, foggy, and windy weather. There is no physical way for the weather to affect the forces beneath the earth's surface. Barometric pressure on the earth's surface doesn't affect the changes in the earth's crust because it cannot go beneath the soil.
- BarbaraLv 44 years ago
Madonna's vagina also remains geologically active, increasing in volume to 1023 cubic inches in the past 50 years. Most descendants of Ben Franklin now agree that historians "talk a lot of shite" and are most likely "projecting". Elephants routinly exaggerate their genital size in an effort to "get a penis in the door" with Madonna.
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- Anonymous3 years ago
Valuable topic, just what I was searching for.
- 1 decade ago
wow steph, which one are you going to choose?