Please enable JavaScript.
Coggle requires JavaScript to display documents.
EARTHQUAKE PREDICTION (Long Term (Methods (Geologic maps are examined…
EARTHQUAKE PREDICTION
Long Term
Time cycle
Order
50
100
250
Methods
Distribution of seismic activity at world-wide level
Example
Puerto Rico
Study of
Recurrence of event
Geologic maps are examined
Active vaults
Other geologic structures
Correlated
distribution of intensity
Historical earthquakes
Model of seismic attenuation
other statistical data
Result
Maps
Seismic zones
Identify reigons
different earthquake intensity
can be anticipated
Predicts
Earthquake
Tidal waves
Liquification
Seismic amplification
Landslides
Not 100% religable
Short Term
Goal
Method as effective as
Prediction of meteorological phenomena
Examples
Correctly-guessed
Liaoning, China, 1975
Changes in the elevation
Ground
Levels of phreatic mantle
Increase seismic activity
Strange animal behaviour
Chinese Government
Broadcast warning
Evacuation
Wrongly-guessed
Tangshan, 1976
Kwantung, 1976
Mid-term Prediction
Example
Parkfield, USA, 1984
Network of Equipment
Seismic stations
Geodesic measuring equipment
Apparatuses to measure
Levels of
Phreatic mantle
Electrical resistivity
Magnetic fields
Failed to predict
Dark Hill, 1989
Northridge
Method
#