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An accurate universal earthquake warning system consists of a system of mobile seismic systems in an array, covering specific areas. Each mobile seismic system is used to detect daily expected pulses that are known to exist in specific cycles. The seismic systems are mobile because they need to be moved around every time a new earthquake cell is detected. The first thing that occurs, is the possibility of a 24 hour Earth adjustment. Usually this 24 hour adjustment is just watched and not located. Then, usually after the 24 hour Earth adjustment occurs the real earthquake cell shows itself.
Then the mobile seismic system is taken to the epicenter of the earthquake cell. The fast way of getting to the epicenter is by "Visual Detection" of the representation of the fault under abnormal pressure, which occurs in the sky above the fault under abnormal pressure due to an emmision that is coming directly up out of the ground at the fault. Seismic pressure readings can be taken along the route on the way to and from the epicenter along different routes, so more seismic data is collected. A gps is used to pinpoint these locations, and the epicenter, and then later the focus depth of the earthquake cell; sometimes math is needed to figure out the focus depth if hills or mountains exist in the area.
Once all of this data is collected the data is compared to a past isoseismic maps that had similar data and seismic pressures at the same distances from their earthquakes epicenter; and these past earthquakes exact magnitudes were known. Comparable earthquakes are noted, giving a very approximate magnitude of the upcoming earthquake.
The noted earthquake cell is watched on a daily basis for its release, the release time is noted and the exact time of the upcoming earthquake in the primary area is calculated by travel time from the secondary area which may be hundreds or thousands of miles away from the primary area. In the primary area, the cell might have grown dramatically, quickly. Time is now of the essence, and an accurate earthquake warning can be given. See Earthquake Prediction for more information.

Contents

What causes an earthquake?

Warning system configuration

Transit safety

See also

What causes an earthquake?

An earthquake is usually created by newly formed pressure exerted by another earthquake(s) releasing its pressure in a burst of energy, or an earthquake cell(s) in the distance releasing its pressure; or by the Mid Atlantic Ridge spreading and creating more pressure. This is verifiable by special seismic systems which can be used to show actual chain reactions of earthquakes taking place and the actual directional movements of the Earths crust.

Warning system configuration

Earthquake warning systems are comprised of arrays of seismic motion sensors arranged throughout a region. High speed communications systems and computers collect the sensor readings and the computers are programmed to detect the likely strength and progression of the seismic event. If a dangerous event is detected then alarms can be signalled through the region likely to be effected, allowing warnings before local ground motion of up to and beyond twenty seconds. While short, such warnings would be sufficient to allow many persons to move to safer areas or to take shelter under substantial furnishings.

Transit safety

Such systems are currently implemented to determine appropriate real-time response to an event in determining train operator response for urban rail systems such as BART (Bay Area Rapid Transit). The appropriate response will be highly dependent upon the warning time, the local right–of–way conditions, and the current speed of the train.

See also

★ Earthquake prediction

★ Hayward fault - a typical slip-strike fault within a highly urbanized region

★ Household seismic safety

★ Seismic retrofit