The British Geological Survey are asking those who felt last night's 3.2 magnitude earthquake in Somerset to fill out a questionnaire
It happened just before 11pm with the epicentre close to the village of Huntworth near Bridgwater.
There were reports of houses rattling and people feeling their beds physically shake.
The British Geological Survey says by filling out their form it will help their seismologists.
Residents in several other towns and villages also reported feeling some shake including areas of Taunton, Cheddar, Wells and south Bristol.
For those of you who felt Thursday evening's earthquake in Bridgwater, Somerset, please fill out our felt report questionnaire. Felt reports provide our seismologists with very useful information: https://t.co/4i4RQzyYEg— British Geological Survey (@BritGeoSurvey) December 6, 2019