aftershock

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Related to Aftershocks: earthquake, tsunami

aftershock

one of a series of minor tremors occurring after the main shock of an earthquake

aftershock

[′af·tər‚shäk]
(geophysics)
A small earthquake following a larger earthquake and originating at or near the larger earthquake's epicenter.
References in periodicals archive ?
The mainshock had the depth of 15 km and then the depth reduced with time from 11-12 km for the first two strong aftershocks until the last strong aftershock was at a depth of 2 km.
Nearly 12 hours after the quake, a sharp aftershock alarmed the residents of Sant'Agostino di Ferrara and knocked off a segment of the city hall's wall.
Authorities said that parts of Christchurch will have to be abandoned due to the extent of the damage caused by the aftershocks.
JAPAN has been rattled by a strong aftershock and tsunami warning, nearly a month after a devastating earthquake and tsunami flattened the north-eastern coast.
Summary: TOKYO: A major aftershock rocked northeast Japan Thursday and a tsunami warning was issued for the coast devastated by last month's massive quake and tsunami that crippled a nuclear power plant.
In fact, the country was hit by more than a dozen significant aftershocks - three over magnitude-6 and six above magnitude-5 andndash; on Thursday, demonstrating the challenges that face Pinera.
Quake expert He Yongnian said: "Judging from previous earthquakes of a similar magnitude, this time the aftershocks may last for two or three months.
An aftershock shook Pakistan today, rattling the nerves of those who lived through last weekend's devastating earthquake and bringing an even greater sense of urgency to efforts to find survivors under the precarious rubble.
If the maps showed a high risk of aftershocks along major fault lines or highly populated areas, emergency officials could ready responders or plan evacuations.
There were no immediate reports of damage or casualties from the aftershock, the strongest since last Sunday's magnitude 9.
A few hours after waiting through subsequent aftershocks, we helped hand out emergency blankets to our fellow evacuees.
Powerful aftershocks rocked north-western Japan today, as tens of thousands of people huddled in evacuation centres following a devastating weekend earthquake.