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.
The Taal Volcano in Batangas Province, Philippines, experienced two phreatic bursts in 24 hours to 21:00 UTC on June 29, 2023, as well as 9 volcanic earthquakes and 5 volcanic tremors. Alert Level 1 is in effect; entry into Taal Volcano Island PDZ is forbidden.
An intense derecho ripped across the Midwest on Thursday, June 29, 2023, unleashing life-threatening wind gusts of over 160 km/h (100 mph) and leaving more than 500 000 households without power across Iowa, Illinois, and Indiana. This potent line of thunderstorms caused significant property damage and affected millions of Americans.
New activity/unrest was reported for 5 volcanoes from June 21 – 27, 2023. During the same period, ongoing activity was reported for 16 volcanoes.
A shallow earthquake registered by the USGS as M6.0 hit south of Tonga at 07:16 UTC on June 25, 2023. The agency is reporting a depth of 7.1 km (4.4 miles). EMSC is reporting M6.0 at a depth of 49 km (30 miles).
A long-lasting fireball was recorded over Brazil at 21:39 UTC on June 19, 2023. The event lasted over 20 seconds.
A bright green meteor entered Earth’s atmosphere over Brazil at 02:30 UTC on June 22, 2023, illuminating the night sky across five Brazilian states before disintegrating.
A newly-discovered asteroid designated 2023 MW2 flew past Earth at a distance of 0.322 LD / 0.00083 AU (123 724 km / 76 878 miles) from the center of our planet at 07:16 UTC on June 23, 2023.
Tropical Storm “Bret” is approaching hurricane strength on its way toward the Lesser Antilles. The current forecast track takes it over those islands this evening and tonight (LT) as a strong tropical storm.
New activity/unrest was reported for 5 volcanoes from June 14 – 20, 2023. During the same period, ongoing activity was reported for 17 volcanoes.
As of June 21, 2023, heavy rains related to the recent Tropical Cyclone “Biparjoy” have resulted in at least 7 fatalities and mass evacuations in the northwestern Indian state of Rajasthan. About 15 000 residents have been relocated from low-lying areas due to flooding.
