The resistance to black suffrage after the war regularly erupted into violence as groups tried to protect their power.

Prior to the 1959 Yellowstone earthquake, it erupted regularly every three minutes.

But for the reader, fascination and surprise regularly erupt from the detail.

Earthquakes in June 2000 subsequently reawakened the giant for a time but it is not currently erupting regularly.

Skirmishes about who would sleep where erupted regularly, as did literary and political feuds.

Only a simmering unrest which regularly erupted in riots or strikes, the leaders of such mutinies invariably found and executed.

Some recruits were clearly mentally ill, she said, and screaming arguments erupted regularly.

Yes, concert orchestras regularly erupt with violence.

They regularly erupt into laughter, collapsing against each other's shoulders.

Sam Kenison erupts regularly into menacing outbursts of hostility.