Answer #2
Actually the 1812 New Madrid Earthquake was measured 7.7 according to the USGS. Therefore, the strongest earthquake in the continental US was magnitude 7.9 on Jan 9, 1857 in Fort Tejon, California.
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.
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It occurred on 28 March 1964 in Prince William Sound in Alaska. The earthquake had a magnitude of 9.2 making it the largest ever recorded in the US and the third largest ever recorded on Earth.
Prince William Sound, Alaska, March 28 1964, magnitude 9.2
The earthquakes affecting the largest area of the US were the four New Madrid earthquakes that affected over 50,000 square miles of the American frontier. There were two on December 16, 1811 (7.9 to 8.1), one on January 23, 1812 (7.0 to 7.8), and one on February 12, 1812 (7.4 to 8.0). They struck in northern Arkansas and near New Madrid, Missouri on the Mississippi River border with Tennessee.
The biggest was in Prince William Sound, Alaska. It was on March 27, 1964 with a magnitude of 9.2. The earthquake itself killed 15 people and a following tsunami killed another 113. It costs about $311 million dollars in property loss. A landslide caused by the quake crashed down on about 75 homes and occupied 130 acres.
The largest recorded earthquake in the United States was of magnitude 9.2 and occurred near Prince William Sound in Alaska on Good Friday the 27th of March, 1964, at 5:36 pm AST or 3:36 am UTC on the 28th of March.
The epicenter of the earthquake was approximately 12.4 miles (20 km) north of Prince William Sound and 78 miles (120 km) east south east of Anchorage.
It's exact location was 61 deg 3' 0'' N, 147 deg 28' 48'' W.
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The biggest earthquake in U.S. history was the 1964 Alaskan Earthquake. It was a magnitude 9.2, the second-most powerful earthquake ever recorded. Its epicenter was about 12.4 miles north of Prince William Sound, about 78 miles east of Anchorage, and about 40 miles west of Valdez. It lasted three minutes in the late afternoon of Good Friday, March 27, 1964, killing 143 people.
it was a 10000.5 magnitude earthquake happened in 1890
The 1960's Alaska earthquake
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The biggest earthquake ever recorded in New Zealand was the Wairarapa earthquake in 1855. This earthquake had a magnitude of 8.2.
It is the biggest earthquake ever! With a magnitude of 9.5
The biggest earthquake in the world was the one in India, which was caused by a volcanic erruption.
The biggest ever earthquake occured in Egypt on 1201 it mesured 9.6 on the Richter scale and killed an estimated one million people.
It was 2004 when a earthquake struck in the middle of theIndian ocean it's measurement is 9.8 critical scale biggest ever in centeries.
The Chile Earthquake in February was the biggest earthquake reported in 2010.
Alaska had the biggest earthquake in the US.
12is the biggest magnitude of an earthquake.
Alaska is the biggest state and covers like half of North America. Also, in 1964 Alaska had the biggest earthquake in America and even possibly the world.
The biggest earthquake measured 9.5 on the ritcher scale.
The biggest earthquake ever recorded in New Zealand was the Wairarapa earthquake in 1855. This earthquake had a magnitude of 8.2.
The earthquake in Southern Ocean North of Macquire Island in 2004 is the biggest earthquake reported in Australia, with a magnitude of 8.1
The biggest earthquake reported in Mexico was the Mexico City Earthquake in 1985. It had a magnitude of 8.5, and caused about 10,000 deaths.
the biggest earthquake recorded was 9.1 on the Richter scale.
The biggest earthquake reported in 2010 was the Chile Earthquake on February 27 with a magnitude of 8.8.
Megaquake
The biggest earthquake in our century is the Indian Ocean earthquake in December 2004 with a magnitude of 9.1. But that's not exactly in the last five years, so the Sendai earthquake in Japan today (March 11, 2011) is the biggest earthquake in the last 5 years, with a magnitude of 8.9.