The police are now monitoring criminal/gang/drug 'activity' in the area.
There has been an increase in the city's (level of) economic 'activity'.
The instruments are used to detect volcanic 'activity' on the island.
(..) Yes. Well, what do you need to do with it? I gotta unlock it. It's got, like, a black box... ...that has recorded all of the seismic activity... ...that's transpired in the last years. Could tell me a lot about Max. And what he was doing when he went missing. Trevor, I'm really sorry, (..)2008 Journey to the Center of the Earth
(..) sensors are even still active? One, two...? - Three. - It used to be . This is the wrong time to shut us down. I have got seismic activity in Bolivia. I got a millimeter shift in Mongolia. Alan, you can't shut us down. Keep the lab open. - It's all I've got left of Max. (..)2008 Journey to the Center of the Earth
(..) Evening game of bridge? Charlie. Charlie, please; real men don't play bridge, and, uh, I have a... an obligatory cultural activity in the village this evening. Can I come? Will there be girls? No and yes. So you're leaving (..)2006 A Good Year