Myanmar: quake and pollution

A magnitude 4.0 earthquake struck Myanmar on April 12, as separate reporting traced toxic Kok River pollution to a mining boom across the border. (aninews.in) (straitstimes.com) India’s National Centre for Seismology said the quake hit at 4:29 a.m. India time at latitude 23.141 north, longitude 96.072 east, with a reported depth of 140 kilometers. The agency listed the location simply as Myanmar. (aninews.in) The pollution story is centered hundreds of kilometers away on the Kok River, which rises in Myanmar’s Shan State and flows into Thailand’s Chiang Rai and Chiang Mai provinces. The Straits Times reported on April 11 that Thai communities there are dealing with heavy metals, sediment and industrial runoff linked to unregulated rare-earth mining upstream. (straitstimes.com) Rare earths are a group of 17 metals used in magnets, electronics, defense systems and clean-energy equipment. Mekong Independent reported that extracting them can generate large volumes of hazardous waste, and Thai researchers have tied mining in Myanmar’s watershed to arsenic and lead in rivers flowing into Thailand. (mekongindependent.com) Thai officials had already found contamination before this week’s reports. Mekong Independent said Thailand’s Pollution Control Department confirmed dangerous arsenic and other heavy metals in the Kok River in March 2025, and the Bangkok Post later reported tests showing excessive arsenic and lead in samples collected in April 2025. (mekongindependent.com) (bangkokpost.com) The damage is showing up in household income. The Straits Times reported that one 49-year-old fisherman said his catch now sells for barely a third of its usual price, while boats serving the Ruammit Elephant Village and nearby riverside attractions have sat idle for much of the past year. (straitstimes.com) Farmers are also losing water they once depended on. Mekong Independent reported that some households along the Kok draw up to 80 percent of their irrigation water from the river, and one family interviewed said polluted water now threatens crops that support annual income of about 100,000 baht, or roughly 3,050 United States dollars. (mekongindependent.com) Researchers and rights groups say the mining surge accelerated after Myanmar’s February 2021 military coup. Mekong Independent, citing the Stimson Center and the Shan Human Rights Foundation, said Chinese-owned operations expanded into the Kok and Sai river watersheds in 2022 as armed groups controlled more territory and environmental oversight faded. (mekongindependent.com) Thai academics are pressing for a cross-border response rather than piecemeal testing. The Bangkok Post reported that Thammasat University’s Surasak Boonrueang called for a Transboundary Environmental Impact Assessment framework and a single Thai database led by the Pollution Control Department. (bangkokpost.com) So April 12 brought two separate alerts from Myanmar: one from the ground shaking beneath it, and one from polluted water flowing out of it. In northern Thailand, the second crisis has already reached fish markets, farm plots and tourist boat landings. (aninews.in) (straitstimes.com)