Tremors of up to 4.0 Sunday hit Russia's restive region of Chechnya where a strong earthquake killed at least 13 people earlier this month, officials said early Monday.
No casualties or damage were reported, local emergency situations ministry officials said as quoted by the ITAR-TASS news agency, adding that a total of 320 tremors shook Chechnya since the October 11 quake.
The quake, which had measured 6.3 on the Richter scale according to Strasbourg observatory estimates, also injured more than 100 people and caused severe damage to infrastructure including roads, power supplies and communications.
