Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Aseismograph can record earthquakes at a 2.5 magnitude or below but they are usually not felt.
Source: https://www.dailyrecord.co.uk/news/uk-world-news/earthquake-cornwall-rocks-homes-residents-31475423