📖 what
What is aftershock?
EarthquakesSeismic activity
Quick Answer
An aftershock is a smaller earthquake that follows the main shock in the same region as the crust adjusts.
The Full Story
Aftershocks happen because the main rupture redistributes stress on nearby faults and rock blocks. They can continue for days, months, or even years after a major earthquake, with the largest and most frequent occurring soon after the main event. Some aftershocks are strong enough to cause additional damage to already weakened buildings. Their pattern helps scientists understand how stress migrates through the crust.
Key Facts
1.Aftershocks follow a main earthquake in the same area
2.They are usually most frequent immediately after the main shock
3.Some can still be damaging
YouTube Angle
Suggested video title for this topic:
"Why the shaking often doesn’t stop after the big quake"