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There are two main causes of seismic activity in Hawaii. One is the underground movement of magma (molten rock). Second, the islands themselves are unstable and are gradually subsiding, breaking rock as they do.
it was few weeks back in July 2010 in Washington D.C.,although it wasn`t very high on the Richtor scale it was only a point 3, there was no damage.
an earthquake happens
Although the 2011 Christchurch, New Zealand earthquake registered 6.3 on the Richter scale the damage caused was very great. The main reason was the peak ground acceleration (PGA) exceeded 1.8g's ( 1 g is equal to the acceleration due to gravity or 9.8 meters per second squared ). This PGA is extremely high and very rare and would cause many cities in the world to be completely leveled. Other reasons the quake caused so much damage where the depth of the epicenter was only 3 miles, the land displacement was approximately 50cm ( after the quake subsided ) and there where probably seismic waves rebounding back into the city having been reflected off the basaltic Port Hills outside the city.
Rocks on the side of a spring will move if there is a earthquake. When a earthquake happens it shakes everything.
New Orleans Getting Back to Normal - 2010 TV was released on: USA: 2010
There are maps showing the pattern of shallow seismology, and Christchurch generally is not in the quietest areas. The particular sets of recent faults were not known of - they had not revealed their existence previously. But for example the spire of the Christchurch Cathedral had been damaged three times previously by earthquakes. And in more recent times, the regional Authority had issued maps of unstable ground known of in the city area. However, The Earthquake Commission is well aware of the need for All New Zealanders to be prepared for an earthquake, and each household is expected to have about three days of water and food as an emergency store. This is promoted for example in all the telephone books. Many folk are quite uncomfortable about preparing for a disaster, and ignore these precautions. Earthquake commission is doing its efforts to bring the Christchurch back as it was.
loss of life and have to spend a lot of money to come back to normal
Hello I don't know if this helps you but my bother works down in Christchurch and on Friday he flies up to Auckland to see his family and back on Monday. C ya
There are two main causes of seismic activity in Hawaii. One is the underground movement of magma (molten rock). Second, the islands themselves are unstable and are gradually subsiding, breaking rock as they do.
the tendency for the deformed rock along a fault to spring back after an earthquake
the moment magnitude scale rates an earthquake by estimating the total energy released during an earthquake
turn back cave
it was few weeks back in July 2010 in Washington D.C.,although it wasn`t very high on the Richtor scale it was only a point 3, there was no damage.
in about 15min or 20 that how you get back to normal
back to normal
turn back cave.