Latest news with #seismicactivity
CTV News
15-06-2025
- General
- CTV News
Vale confirms seismic activity at mine prior to Sudbury earthquake
Vale confirms seismic activity at two Sudbury mines on the weekend with Earthquakes Canada recording a 2.8-magnitude earthquake on Sunday afternoon. With all of the mining activity in the Sudbury area, residents will occasionally experience seismic activity. The most recent earthquake happened at 2:17 p.m. Jan. 22 about 22 kilometres northeast of the city, Earthquakes Canada said. 'We can confirm that a number of seismic events occurred at Creighton Mine from 11:55 am to 12:30 pm Saturday ranging from 1.5 to 3.0 in magnitude. Seismicity was also detected at Garson Mine on Sunday at roughly 2:17 PM, measuring 3.1 in magnitude,' Jeffrey Lewis told CTV News in an email. 'No one was injured during the events and we immediately implemented our internal seismic response protocol to ensure the safety of our workforce. Operations will ramp up following inspection and as seismicity returns to background levels.' Of the 180 community reports on the intensity of the earthquake, most recorded it as weak and light shaking with no damage. It has been about seven months since the last time the Nickel City felt an earthquake when a 3.1-magnitude mining-related quake shook the area 13 km northeast of the city at Vale's Garson Mine at a depth of 1.5 kilometres. 'Seismicity can occur as part of mining, especially at significant depths. Our emergency response processes are in place to ensure rigorous safety protocols are followed when seismic events occur,' Lewis said. 'Residents with questions or concerns may call Vale's Community Concerns Line at 705-222-VALE.'
Bloomberg
12-06-2025
- Business
- Bloomberg
Flooding at Ivanhoe Copper Mine Was Self-Induced, Study Suggests
Seismic activity that disrupted output at a massive copper mine in the Democratic Republic of Congo appears self-induced, according to preliminary findings released by operator Ivanhoe Mines Ltd. The incident last month, which flooded parts of the Kamoa-Kakula mine, began in an area where a 'mature percentage' of ore had already been extracted, the company said in a Wednesday filing.
Reuters
12-06-2025
- Business
- Reuters
Ivanhoe restarts part of Congo copper mine; cuts output guidance
June 12 (Reuters) - Ivanhoe Mines ( opens new tab said on Wednesday it had resumed underground mining in part of its Kakula copper mine in the Democratic Republic of Congo that had been closed due to seismic activity, but lowered output guidance for the year. Mining on the mine's western side resumed on June 7, while Ivanhoe will start pumping water out of the eastern side in August, aiming to finish by the year's fourth quarter. It will also look to open a new section for mining in the eastern part. The Kakula mine is part of the giant Kamoa-Kakula copper mining complex. The Canadian miner said it now expects 370,000 tons and 420,000 tons of copper output from the Kamoa-Kakula mining complex. It had withdrawn earlier guidance of 520,000 and 580,000 tonnes following seismic activity and floods in May. The company also withdrew its 2026 target of about 600,000 tonnes of copper production. "This is a significant setback for the plans at Kamoa-Kakula and leaves uncertainty about 2026 and beyond production and whether mining can resume in the previously developed area of Kakula East," analysts at RBC said in a note. The disruption is the latest in a series of supply-side setbacks that has tightened global copper supply, helping to drive margins for smelters into deeply negative territory. Co-owner Zijin Mining ( opens new tab has not issued any statements on the mine's status since May, when it said the tremors had damaged mine roofs and could affect output. Ivanhoe subsequently disputed Zijin's statement, although it later withdrew guidance. Zijin did not immediately respond to an emailed request for comment about Ivanhoe's latest statement.
Bloomberg
11-06-2025
- Business
- Bloomberg
Ivanhoe Restarts Part of Congo Copper Mine Impacted by Flooding
Ivanhoe Mines Ltd. has restarted underground operations in part of its giant copper mine in the Democratic Republic of Congo while another section remains offline after seismic activity caused flooding deep below ground. In an update late Wednesday, the Canadian company said equipment and mining crews returned on June 7 to the western side of the Kakula mine, with underground operations there resuming in a 'conservative manner.'
South China Morning Post
04-06-2025
- Climate
- South China Morning Post
Japan on alert as Hokkaido tremors reignite megaquake fears
A string of moderate earthquakes off the coast of Japan 's northern island of Hokkaido has reignited concerns among experts and residents about the risk of a catastrophic seismic event – though scientists stress the tremors do not necessarily signal an impending disaster. Local authorities are taking no chances, however, instructing residents to take precautions just in case the new seismic activity proves to be a precursor to a long-feared megaquake A magnitude 4.7 quake struck off the southeast coast of the prefecture at 4.08am on Monday, just 16 minutes after a 6.3 tremor nearby. In a little over six hours from 5.37pm on Saturday, there had been no fewer than five tremors ranging from 4.3 to a magnitude of 6.1 in the same area. The previous day, a 5.4-magnitude quake struck a little further north, but still close to the Chishima Trench. Running parallel to the Japanese coast, the 2,200km (1,400-mile) fault is where the Pacific tectonic plate subducts under the North American plate, causing a great deal of seismic activity. A Japan Meteorological Agency official points to a map showing a magnitude 6.6 earthquake off the southwestern Japan prefecture of Miyazaki in January. Photo: Kyodo The Japan Meteorological Agency (JMA) said that none of the quakes were severe enough to trigger additional seismic activity and that they were being treated as isolated incidents. But the agency did warn that the Chishima Trench had been the source of megaquakes in the past.
