2.Magnitude, Frequency, Regularity and Predictability

Question 1

Prediction

Answer 1

Impossible to predict when or where seismic disaster will strike
Eg Turkey North Anatolian Fault, predicted Izmit would be hit next however, Istanbul was affected and was to expected

Question 2

Regularity

Answer 2

Earthquakes don’t follow a regular pattern or trend and their occurrence can be considered as random

Question 3

Magnitude and frequency

Answer 3

Hundreds of low magnitude earthquakes happen everyday

High magnitudes occur much less frequently

Question 4

Measurements Richter Scale

Answer 4

Measures magnitude of earthquake, is logarithmic, major earthquakes are above 7

Question 5

Measurements MMS

Answer 5

Based on total amount of energy released

More accurate than the Richter scale especially for larger earthquakes

Question 6

Measurements Mercalli scale

Answer 6

Measures impacts using observations of event
Scale between 1-12
12 causing total destruction