The Highways Agency say that the pothole appeared near Lynsted half way between junctions for Faversham and Sittinbourne.
It's unclear whether the recent downpours and subsequent flooding contributed to the pothole opening up.
A 10-mile section of motorway in Kent has been closed in both directions after a huge, 50ft-deep hole appeared in the central reservation.Read the full story ›
A 10-mile section of a busy motorway has been closed in both directions after a huge, 50ft-deep hole appeared in the central reservation.
Long tailbacks built up after the M2 in north Kent was shut between junction 5 near Sittingbourne and junction 6 south of Faversham.
The Highways Agency said the hole measured 16ft (5m) by 6ft (2m) and was 50ft (15m) deep.
A sinkhole measuring 30ft deep has opened up on the driveway of a house, swallowing a parked car in Walter's Ash, Buckinghamshire.
According to Bucks Free Press, watch manager Stuart Grosse said: “We get few calls of this nature, mainly in the south of the county. Historically, holes have appeared in the area due to clay mining.”
Firefighters were called to the incident early this morning, and have since placed a cordon around the house.
The matter has been passed to Wycombe District Council to decide what steps to take next.
A massive sinkhole has opened over old mine workings in the Peak District.
Local caver Mark Noble who filmed video of the hole told ITV News: "There are old mine workings directly below the sinkhole with huge cavities left, where the old mine was extracting lead centuries ago.
"The modern Milldam Mine is working at a much greater depth in the area of the sinkhole, but its collapse does not appear to have had a great impact on the mine."
Footage has emerged of a sinkhole in Louisiana swallowing trees and the surrounding land in under a minute.
The Assumption Parish Office of Emergency Preparedness posted a video of the sinkhole which state officials determined was caused by the collapse of an underground salt dome.
A driver was injured when a 40-foot sinkhole swallowed three cars on a residential street in the US city of Chicago today.
Witnesses said the man was trying to drive his car around the hole when the road gave way, the Chicago Tribune newspaper reported. He suffered minor head injuries.
The sinkhole opened up after a water main broke in the South Deering neighborhood of the city, the paper said.
Jeff Bush, 36, is still missing and presumed dead after his home opened up beneath him in February.
Neighbours have since been asked to relocate after tests revealed a chance of more sinkhole activity.
Neighbours and relatives of a Florida man, who is presumed dead after he was sucked into a sinkhole, have watched the emergency services bulldoze his home in Tampa.
The family of 36-year-old Jeff Bush say they woke up to hear him screaming as a 20-foot sinkhole opened up under his bedroom.
Officials have used specialist listening equipment to try and detect signs of life in the hole, but to no avail.
The home of a man in Florida who disappeared into a sinkhole is being destroyed.
On Saturday, rescue workers called off the search for Jeremy Bush and announced his Tampa home would be bulldozed due to safety fears.