The phrase 'ceased activity' is correct and usable in written English.
You can use it when you want to express that some activity has stopped or been halted. For example: "After the fire alarm went off, all activity in the building ceased."
Although it ceased activity in 1897, the Independent Theatre Club prepared the way for the Stage Society, founded in 1899.
In contrast, since the start of our monitoring study of temporal variations in subsurface resistivity structure and temperature, Shinmoe-dake volcano has gradually ceased activity and the observed MT impedance changes have only been very slight (±5%).
The company, the Blair Atholl Syndicate, ceased activity in 1914.
In 1992, the primary zinc smelter in Overpelt ceased activity (Buchet et al. 1996).
While DNA transposons are thought to have largely ceased activity in primates about 37 million years ago [ 16], retrotransposons have continued to propagate throughout primate evolution including the lineage leading to humans [ 13, 17].
The children's channel Lale and the radio stations Meidan FM and Leader, which are part of the ATR media holding, also ceased activities.
Without the factory boat, Japanese harpoon boats have ceased activities, as they have no way of processing their catch.
The basic elements of an active rehabilitation programme include; advice on activity management including work, graded physical exercise, and early resumption of avoided or ceased activities using a cognitive behavioural approach [ 37].
Individuals become active after darkness has fallen and cease activity sometime before dawn.
"He tells the imam to cease activity.
Phase one on 9 August 2007 began with the seizure in the banking system precipitated by BNP Paribas announcing that it was ceasing activity in three hedge funds that specialised in US mortgage debt.
