The difference between them is that Primary effects happen during the earthquake e.g. Casualties, Damage to parking structures & free ways. But with Secondary effects they happen after an earthquake e.g. Fire, Landslides & Liquefaction
We can divide the effects of an earthquake into those known as the primary effects and those known as the secondary effects. Primary effects of an earthquake are those resulting directly from the earthquake itself. These include; buildings collapsing; roads cracking; bridges giving way; shattering of glass and injuries / deaths resulting from these. Secondary effects are those that result from the primary effects. For example ground shaking may result in the cracking of gas and water pipes (primary effects) this can result in severe fires due to explosion from escaping gas and difficulties in putting out fires due to lack of water from burst mains (secondary effects). Other secondary effects include, homelessness, business going bankrupt and closing etc.
A Primary Effect is basically an disaster like earthquakes what happens in the area of the earthquake e.g buildings f-d damaged like tat secondary effects well....... U dint ask 4 tat. -I.E_ Revstar deadshotyz
Scientists use seismic waves to find an earthquake epicenter. By analyzing the arrival times of primary (P) and secondary (S) seismic waves at different seismic stations, scientists can triangulate the epicenter of the earthquake.
Primary effects are things that happen straight away as soon as the earthquake hits, such as; buildings shake/collapse (depending on how strong the earthquake is) roads crack/fall in, gas and water systems/poles break/burst
Twice as long. The interval between the arrival of the primary and secondary waves doubles with every doubling of the distance from the epicenter due to the different velocities of the waves.
people died
primary effects: people felll over and died buildings collapsed glasss shattered roads ruined bridges collapsed Secondary effects: Unemployment Roads closed People died Insurance claims rose Supplies become harder to get Businesses go bust
We can divide the effects of an earthquake into those known as the primary effects and those known as the secondary effects. Primary effects of an earthquake are those resulting directly from the earthquake itself. These include; buildings collapsing; roads cracking; bridges giving way; shattering of glass and injuries / deaths resulting from these. Secondary effects are those that result from the primary effects. For example ground shaking may result in the cracking of gas and water pipes (primary effects) this can result in severe fires due to explosion from escaping gas and difficulties in putting out fires due to lack of water from burst mains (secondary effects). Other secondary effects include, homelessness, business going bankrupt and closing etc.
The secondary wave of the earthquake cause little damage, only a few buildings fell.
20,000 people dead
Gujarat lies around 400 km from the plate boundary that is located between the Indian Plate and the Eurasian Plate. This earthquake that struck Gujarat was caused by rifting reverse faulting on reactivated rift faults
Primary and secondary refer to the order in which they come out, surface waves are called surface because they resonate close to the surface
floodinggg :D
how far away you are from the focus of an earthquake
P waves (primary waves) and S waves (secondary waves).
Primary (P) and Secondary (S) waves
Eg. in an earthquake, they are called the primary and the secondary sound waves. grrrrrr