Did You know.......
- There are high chances of a 9 magnitude earthquake in California because it has the San Andreas fault and is close to the Cascadia Subduction Zone.
- The last San Francisco earthquake was indeed powerful, but things like broken power lines, water pipes, and gas pipes greater increased the negative outcome that came from this earthquake.
- In Coalinga, on May 2, 1983, there was an earthquake that had a magnitude of 6.7, caused 10 million dollars in damage in a 47.7 mile radius, and what really threw people off is where the fault was and where the earthquake came from. The source of this earthquake was never discovered.
- Earthquakes are caused by faulting, a sudden lateral or vertical movement of rock along a rupture (break) surface.
- One way Earthquakes are measured is by using seismograph.
- For the future, a system is being developed that is called Earthquake Early Warning (EEW) and it is being developed just for the west side of the United States because of the San Andreas Fault and the danger that an earthquake could come from it.
- Landslides and avalanches can be created from earthquakes.
- Earthquakes can cause fires by damaging gas lines or electrical power.
- Earthquakes can rupture water mains, thus creating a loss of water pressure. This is extremely dangerous if there are fires blazing in the earthquake-stricken town or city.
- Soil Liquefaction - When material (Such as sand) temporarily loses its strength and changes from a solid to a liquid. This can happen to the soil underneath buildings, causing them to sink or tilt, and eventually collapse.
- Earthquakes can create tsunamis and floods, so coastal regions would have two natural disasters to worry about.
- The first wave of shaking in an earthquake is called P waves, the next wave of shaking is called S waves.
- When the P Waves come the machines detect them and then everyone in that is warned and told to evacuate to a safe place