• Shallow M5.1 earthquake hits Zhangye, China

    A shallow earthquake registered by the USGS as M5.1 (downgraded from M5.5) hit Zhangye, China at 12:48 UTC (20:48 LT) on September 16, 2019. The agency is reporting a depth of 18.5 km (11.49 miles). EMSC is reporting M5.5 at a depth of 10 km (6.2 miles). China…

  • Strong explosion at Sakurajima volcano, Japan

    A relatively strong explosion took place at Sakurajima volcano, Aira caldera, Japan at 22:46 UTC on September 15, 2019 (07:46 LT, September 16). According to the Tokyo VAAC, the ash plume is reaching 4 000 m (13 000 feet) above sea level, extending SW. This is 2 880…

  • Purple Colorado sky caused by Raikoke volcano eruption in Russia

    Researchers from the University of Colorado Boulder revealed that the purple sky seen in the state was due to the eruption that occurred on Raikoke volcano in Russia, located 7 535 km (4 682 miles) away, on June 22, 2019. The team, composed of atmospheric scientists…