A 4.6-magnitude earthquake occurred in the south of Donetsk region at around 11:15 a.m. on Sunday, according to the European-Mediterranean Seismological Centre (EMSC).
The epicentre of the earthquake occurred 78 kilometres south of Donetsk and 21 kilometres north of Staryi Krym, Kalmius district, Mariupol, the epicentre was ten kilometres deep, the EMSC said on its official site.
Later there were reports of cracks appearing in some houses.
The quake magnitude reached 4.9 at times, Ukrainian state emergency officials told journalists. The last time underground tremors were registered in the region was 30 years ago, they said.
Social media users in Mariupol said two tremors were clearly felt in all parts of the town. There is no information about damage but have been reports of trembling walls, shaking furniture and stucco cracks.
Underground tremors were also reported by users in Donetsk, Maryinka, Volnovakha in Donetsk region; Zaporizhia, Berdiansk and Melitopol in Zaporizhia region; Dnipro, Kryvy Rih and Kropyvnytsky. Similar reports were received from the nearby Russian towns of Rostov-on-Don and Taganrog.