Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.
Magnitude 4.1 earthquake was registered by the USGS at a depth of 8.9 km (5.5 miles) in Napa County, California at 02:53 UTC on May 22, 2015. It is the strongest earthquake since August 23, 2014 when the region was hit by strong and shallow M6.0.Going back a bit further
New activity/unrest was observed at 8 volcanoes from May 13 – 19, 2015. During the same period, ongoing activity was observed at 16 volcanoes.New activity/unrest: Bulusan, Luzon (Philippines) | Calbuco, Chile | Chaiten, Chile | Etna, Sicily (Italy) | Hakoneyama, Honshu
A very strong and shallow M7.2 (downgraded to M6.9 at a depth of 33 km/20.5 miles) earthquake was registered by Geoscience Australia near Lata, Solomon Islands at 22:48 UTC on May 20, 2015. USGS registered it as M6.8 at a depth of 12 km (7.5 miles).According to the USGS
Indonesian Mount Lokon, located in Tomohon, North Sulawesi, erupted early Wednesday, May 20, 2015 spewing ash up to 3 km. A 2.5 km no-entry radius around the Tompaluan crater was established.The eruption took place at 07:20 UTC (14:20 local time) on May 20, 2015. At
A strong and deep M6.1 earthquake at a depth of 200 km (124 miles) was registered by Geoscience Australia near Tonga at 00:30 UTC on May 20, 2015. USGS registered it as M6.0 at a depth of 80.3 km (112.0 miles).According to the USGS, epicenter was located 128km (80mi) WN
A very strong and shallow earthquake M6.7 (USGS) hit Pacific – Antarctic Ridge at 15:25 UTC on May 19, 2013. USGS is reporting depth of 10.2 km (6.3 miles). EMSC is reporting the same magnitude at a depth of 33 km (20 miles).Epicenter was located 2 151 km (1 337 miles)
Earth's magnetic field is still disturbed in response to continued presence of a positive polarity coronal hole high speed stream (CH HSS), possibly combined with a transient feature originally expected for May 17. Between 12:30 UTC on May 18 and 12:30 UTC on May 1
At least 47 people have been killed after a massive landslide buried the small town of Santa Margarita around 08:00 UTC (03:00 local time) on Monday, May 18, 2015. According to media reports, heavy rain caused the river Liboriana to burst its banks setting off the lands
A new eruption has started from a fissure vent at the southeast slopes of Piton de la Fournaise's Dolomieu crater at 09:45 UTC on Sunday, May 17, 2015. The eruption triggered Alert Level 2 (ongoing eruption) and the restriction of access by the public to the summit
US Plains and Midwest are again experiencing severe weather outbreak. Preliminary reports mention at least 27 tornadoes on Saturday, May 16 (Oklahoma, Minnesota, Texas, Kansas, Missouri, Nebraska and Wyoming) and baseball-size hail.Severe thunderstorms are expected acro
