2006-06-07 19:40:04 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Geography
A seismograph measures the strength and direction of earthquake waves. It records the tremors and compares their strengths on the Richter scale. A scale of one is a minor earthquake, while a scale of seven is severe.
2006-06-07 19:50:57 · answer #1 · answered by skeetejacquelinelightersnumber7 5 · 2⤊ 0⤋
richter scale. A 1 is the weakest, a 2 is twice the strength of a 1, 3 is twice the strength of a 2 and so on.
2006-06-08 14:09:41 · answer #2 · answered by mmbrune1@sbcglobal.net 3 · 0⤊ 0⤋
They use a scale called Richter scale which tells us the force of the earthquake..
2006-06-08 02:45:35 · answer #3 · answered by Deep 4 · 0⤊ 0⤋
Mercalli scale is also used, this measures the distruction of the earchquake! whilst the richter scale measures the force of the earthquake itself!
2006-06-08 09:03:07 · answer #4 · answered by Anonymous · 0⤊ 0⤋
by the rector scale. it starts at 1 the smallest and goes through 10 the strongest.
please vote best answer
2006-06-08 02:46:35 · answer #5 · answered by jj77318 3 · 0⤊ 0⤋
It is determined with the help of sismo-graph
2006-06-08 09:26:54 · answer #6 · answered by MOhammed Altaf 1 · 0⤊ 0⤋