The phrase "a strong aftershock" is correct and usable in written English.
It can be used to describe a significant seismic event that follows a larger earthquake, indicating its intensity.
Example: "The region experienced a strong aftershock just minutes after the initial quake, causing further damage to already weakened structures."
Alternatives: "a powerful aftershock" or "a significant aftershock".
A strong aftershock shook the capital today, briefly interrupting rescue efforts.
PORT-AU-PRINCE, Haiti A strong aftershock rattled Haiti once again on Wednesday, causing even more physical damage and further traumatizing the jittery population.
A strong aftershock in the morning delayed some trains heading to the stadium, which is about 45 minutes outside Tokyo, and another aftershock in the fourth inning forced the home plate umpire to call time.
RIO DE JANEIRO — A strong aftershock struck Chile on Sunday, a day after a destructive 8.8-magnitude earthquake left hundreds of people dead and a long swath of the country in smoky rubble.
Recovery efforts along the 90 miles of blighted coast were further hampered by a strong aftershock yesterday morning registering 6.5 on the Richter scale and prompting a short-lived tsunami warning.
Contribute with Guardian Witness A strong aftershock has caused panic and frustrated frantic efforts to reach possible survivors of Saturday's earthquake in Nepal, with the death toll rising to more than 2,500.
The April 20 earthquake was an strong aftershock of 2008 Wenchuan earthquake and were the most devastative earthquake in China since the 2008 Wenchuan earthquake [Wei-Min et al., 2013].
Nearly 46,000 people were ordered to evacuate their homes, including 800 families who had to leave a government shelter on Tuesday night after an unusually strong aftershock cracked its walls.
Indeed, 12 of 13 strong aftershocks (M ≥ 5.0) took place on the northern segment from May 18th to August 7th, 2008, which indicates a high potential for strong aftershock hazards in the northern segment.
First on May 20, and then again nine days later, on Tuesday, when a second earthquake and a series of strong aftershocks reduced this industrial area to a wasteland of closed factories and collapsed warehouses.
The mourning was punctuated by another strong aftershock near Japan's Pacific coast, which briefly set off a tsunami warning, killed a 16-year-old girl and knocked out cooling at the severely damaged Fukushima Daiichi power station for almost an hour, underscoring the vulnerability of the plant's reactors to continuing seismic activity.
