The USGS said on its website following the quake in July: "Following the M8.8 Russian Kamchatka Peninsula Earthquake, the USGS has released new aftershock forecasts that detail the likelihood and magnitude of future earthquakes expected in the region.

The Royal United Services Institute's analysis is based on around 800 pages of documents, including contracts and lists of equipment to be supplied by Moscow to Beijing.

The planes' detection in international airspace off Alaska comes amid tensions over Russian incursions in NATO airspace.

Without firing a shot, Putin has over the past week managed to bring the war in Ukraine to NATO’s European borders.

That campaign now seems to be migrating into the skies above Europe. For decades Russia has occasionally strayed into the national airspace of NATO allies, which follows national borders and extends 12 nautical miles from a country’s shoreline.

Russia and China have long been allies, but there are new indications that they may be taking their military alliance to unprecedented heights: a report released last week indicated that Russia might be helping China’s armed forces gear up for a potential invasion of Taiwan.

Right now, though, U.S. leadership appears reticent. Coincidentally or not, the serious airspace violations have happened since Trump’s summit with President Vladimir Putin in Alaska in August, when the U.S. leader dropped his demand for a ceasefire in Ukraine.

The Zaporizhzhia site in southeastern Ukraine has lacked external power to cool its reactors for five days. Kyiv says Moscow has manufactured the crisis.