The onshore quake struck 38 km northeast of Kainantu at a depth of 103.5 km (64 miles), it said.
There were no immediate reports of damage, and the U.S. Tsunami Warning System said there was no threat of a tsunami.
Earthquakes
The onshore quake struck 38 km northeast of Kainantu at a depth of 103.5 km (64 miles), it said.
There were no immediate reports of damage, and the U.S. Tsunami Warning System said there was no threat of a tsunami.
The epicenter, with a depth of 628.52 km, was initially determined to be at 18.0249 degrees south latitude and 178.4906 degrees west longitude.
The epicenter, with a depth of 109.22 km, was initially determined to be at 6.0867 degrees south latitude and 148.6576 degrees east longitude.
© Volcano Discovery
Date & time: Thursday, 1 October 2020 01:13 UTC
Local time at epicenter: 1 Oct 2:13 pm (GMT +13)
Magnitude: 6.4
Depth: 35.0 km
Epicenter latitude / longitude: 19.495°S / 174.2254°W (Tonga)
Nearest volcano: Late (113 km / 70 mi)
Dr. Lucy Jones, a seismologist, founder & chief scientist at her center, said it is one of the largest swarms we have had in the Imperial Valley - and it is historically the most active swarms in Southern California.
Several swarms of earthquakes occurred near San Andreas.
Wednesday evening from around 4:30 p.m. to 6:05 p.m. there has been an M4.4, M4.9, and most currently a M4.2.
Jones said they are too far from the San Andreas fault to change the probability of a quake on it.
No tsunami warning has been issued yet. Meanwhile, people living in South Africa have been reporting tremors.
© Richard Croft
Tremors were felt in Leighton Buzzard for the fourth time in two weeks
Tremors were felt in Leighton Buzzard for the fourth time in two weeks
A magnitude 2.1 event struck at 1.39pm on Tuesday afternoon, just over four hours after a 3.0 tremor was felt in the Bedfordshire town at 9.32am.
Geologists said they were likely to be aftershocks of the first quake felt in the area on 8 September.
"There's obviously been some stress been building up in that particular area and we've had the initial earthquake," said Glenn Ford, a seismologist with the British Geological Survey (BGS). "It's maybe just still rebalancing the stress regime in that particular part of the world and we're getting these little aftershocks occurring as well."
The 8 September tremor was magnitude 3.5 and the first aftershock five days later measured 2.1.
According to the BGS, residents said Tuesday's first tremor "only lasted a couple of seconds" and that they "felt a single jolt, a bit like being in a car that has done an emergency stop".
© USGS
The quake hit 10 miles west of L.A. at 11.39 pm local time on Friday, according to the US Geological Survey.
It occurred at a depth of nearly 11 miles, and lasted for 30 seconds. It was reported to be one of the biggest earthquakes to hit the L.A. area in years.
There have been no reports of injuries or damage to property, but authorities warned locals to prepare for aftershocks.
The Los Angeles Fire Department posted a tweet shortly after the quake, which read: 'If Inside When Shaking Starts: DROP, COVER, HOLD ON! Protect Your Head & Neck While Taking Cover Under Sturdy Furniture or Near a Sturdy Interior Wall, Away From Windows and Doorways Until Shaking Stops.
The epicenter is over 4,000 miles away from the state of Florida and poses no tsunami threat to the U.S. mainland.
© emsc-csem
The epicenter, with a depth of 10.0 km, was initially determined to be at 15.145 degrees south latitude and 179.7934 degrees east longitude.
Comment: SECOND earthquake in a week hits UK town