A 6.4 magnitude quake has struck off the Kermadec Islands in the Pacific, but there were no immediate reports of damage in an area frequently hit by quakes.
The tremor, first measured at 6.6, hit 159km southwest of Raoul island, the US Geological Survey said.
New Zealand's Civil Defence has not yet commented on whether the quake would affect New Zealand.
A powerful magnitude 6.7 earthquake was registered off the coast of the Kamchatka Peninsula in the Russian Far East on Wednesday, the regional branch of the Geophysical Survey of the Russian Academy of Sciences (GS RAS) said,Trendreports citing Sputnik.
"The magnitude 6.7 earthquake was registered off the east coast of Kamchatka. The epicentre of the earthquake was located at the depth of about 60 kilometres, 108 kilometres (67 miles) to the east of the locality of Ust-Kamchatsk", the GS RAS spokesperson said.
According to the data of the regional branch of the Russian Emergencies Ministry, the tremors were felt in Ust-Kamchatsk. The quake has not resulted in any casualties or damage to infrastructure.
Comment: A 6.3 magnitude earthquake preceded the above event at the same location a day earlier.
An 'atmospheric tsunami' struck Malta's east coast early on Monday morning, sweeping small boats onto the rocks in Xemxija and registering on ocean monitoring stations in St Julian's.
An eyewitness in Xemxija told Times of Malta that at about 6am, the sea level began to rise and fall by around 60 centimetres in regular cycles every few minutes. The phenomenon lasted roughly an hour, leaving several small boats stranded on the shore.
Aldo Drago, head of the University of Malta's oceanography research group, said the phenomenon was known as a coastal seiche, or milgħuba, caused by atmospheric changes.
"In the early hours of the day a train of atmospheric gravity waves hit the Maltese islands from the east; their impact on the sea is like a big sea hammer repeatedly hitting the sea surface and producing long period waves in the open sea areas," Prof. Drago said.
Flash flooding caused major damage in Val-de-Ruz district of Neuchâtel Canton in western Switzerland from 21 June, 2019.
The villages of Villiers and Dombresson were the worst hit, with some areas under flood water 1 metre deep. Photos of the floods showed cars dragged along roads that had been ripped up by flood water. Roads have been closed and some homes evacuated. Local media reported some injuries to drivers as a result of the flooding. Neuchâtel Police called for witnesses of a road accident that occurred on 22 June but gave no further details.
Val-de-Ruz district authorities and Neuchâtel Police said in a statement of 22 June:
"Since last night, the authorities have been mobilized to deal with major damage suffered by the villages of Villiers and Dombresson as a result of the exceptional weather. The situation is now stabilized but the return to normal will take several days, even weeks."
A powerful 7.3 magnitude earthquake struck near to Indonesia's Tanimbar islands in the Banda Sea Monday, with tremors being felt as far away as northern Australia.
The earthquake hit at a depth of about 208 kilometers (129 miles), according to the United States Geological Survey (USGS). That's considered an intermediate depth, meaning the quake was less likely to cause shaking on land than one closer to the Earth's surface.
Still, residents in the Australian city of Darwin, approximately 720 kilometers away (450 miles), said they could feel shaking due to the seismic activity.
An amazing outbreak of Noctilucent Clouds occurred across Europe this month of June with displays reported on June 8th, 10th and 11th, with a major display on the night of June 12/13th and another one on June 17/18th. June 21st however was perhaps a record breaking display with NLCs reported in literally dozens of countries.
Another remarkable aspect of the recent displays is that in many locations the clouds were seen across half the sky. NLCs are usually only seen in the northern part of the sky.
According to the US Geological Survey (USGS), the quake struck just several kilometres from the small community of Petrolia, located over 400 kilometres (250 miles) from the city of San Francisco.
A 5.6-magnitude tremor was registered in Humboldt County in northern California late Saturday, the US Geological Survey reported, adding that the estimated depth of the earthquake was 9.4 km (5.8 miles).
At the moment, there is no official information about damage or casualties in the region.
Comment: A 6.3 magnitude earthquake preceded the above event at the same location a day earlier.