Another major #eruption of #Ruang. Geostationary UV #GK2B GEMS data nicely capture the spreading #volcanic SO₂ cloud, including the #stratospheric overshoot drifting rapidly westwards. The SO₂ mass (~0.3 Tg) is very preliminary and needs confirmation from other sensors.

Evolution of colors in tonight’s #aurora over Hancock, #Michigan. @Upper Peninsula @NWSMarquette @TamithaSkov #northernlights #geomagneticstorm

Overhead #aurora in Hancock, #Michigan tonight. #Auroraborealis #northernlights @UpperPeninsula @TamithaSkov

Satellite data from @CopernicusEU #Sentinel5P #TROPOMI show a band of #volcanic SO₂ advancing over the NW #UK and #Ireland on Aug 24, behind a cold front. Observations of SO₂ over Europe are set to improve (-> hourly) with the upcoming launch of the #geostationary #Sentinel4.

Another batch of #volcanic SO₂ en route to the #UK/#Ireland, courtesy of the latest #eruption on #Iceland's #Reykjanes peninsula. Might cause some local #AirQuality impacts in the coming days. @eddy_weather @ScottishEPA. SO₂ data: @NOAA/@NASA @JPSSProgram #NOAA20-#OMPS

Longer sequence of hourly #GEMS data (daytime only) showing SO₂ emissions from the June 3 #Kanlaon #eruption. On June 5, the upper tropospheric SO₂ cloud was moving west over #SriLanka and S. #India, whilst SO₂ at lower altitudes is dispersing over the southern #Philippines.

The first #lava flows since 1974 on #Kīlauea's Southwest rift zone, imaged by @planet on June 3 at 20:09 UTC (10:09 HST), shortly before the #eruption paused. #Hawaii @USGSVolcanoes @USGS @Volcanoes_NPS

The largest #eruption on record of #Kanlaon/#Canlaon #volcano (#Philippines) on June 3 produced an upper tropospheric SO₂ cloud (~0.05 Tg SO₂), seen here from #geostationary orbit by #SouthKorea's UV #GK2B #GEMS sensor. @phivolcs_dost @News5PH @nababaha

June 1 update: #volcanic SO₂ from #Iceland has drifted south over SW #Wales & #Cornwall, producing an obvious band of #aerosol haze in #NOAA20 #VIIRS imagery. @ThePurpleAir sensors still showing #AirQuality impacts that could be perceptible to sensitive groups. @BBCCornwall

Photos of #volcanic haze (#vog) impacting visibility in the Outer #Hebrides during transit of the #volcanic SO₂ cloud. Courtesy of @eddy_weather .

The #volcanic SO₂ (and derived sulfate aerosol) from #Iceland seems to be impacting surface #AirQuality over the northern #UK today. L: #TROPOMI data shows SO₂ plume at 11:50 UT.R: map shows data from the @ThePurpleAir network. @DefraGovUK

Consecutive orbits of #TROPOMI data on May 30 show ongoing SO₂ emissions from the Sundhnúksgíga #eruption. The SO₂ plume emitted on May 29 is now drifting towards NW #Scotland & SO₂ columns in this cloud remain quite high (~200 DU). Might create some visible haze. @EIlyinskaya

First #Sentinel5P #TROPOMI overpass ~1.3 hours after the onset of today's #eruption on #Iceland's #Reykjanes peninsula shows very high SO₂ column amounts in plume spreading SE. Est. SO₂ emission rate is ~1400 kg/s (~120,000 tons/day). @Vedurstofan @CopernicusEU @rockhardIES

#Sentinel5P #TROPOMI measures ~0.25 Tg SO₂ in the #Ruang #volcanic cloud on April 19. @CopernicusEU @BIRA_IASB

Great analyses as always from @airesEO, using the umbrella cloud growth rate observed by #Himawari to derive a VEI of ~4 for the #Ruang #eruption.

GK-2B #GEMS SO₂ data for the #Ruang #volcanic cloud on April 18. There are some significant data gaps (likely due to clouds or ash) in regions of high SO₂ column amount, but a very preliminary estimate of total SO₂ mass is ~0.3 Tg.

After the GEMS measurements, there was a major escalation of the #Ruang #eruption, producing a high-level umbrella cloud. Higher SO₂ emissions are expected, with stratospheric injection likely. For reference, the 2002 #Ruang eruption emitted ~0.1 Tg SO₂.

SO₂ emissions from the April 16 #eruption of #Ruang #volcano (#Indonesia) measured with hourly cadence by #SouthKorea's #geostationary UV GK-2B #GEMS sensor. Relatively low SO₂ amounts detected so far. @PVMBG_ @id_magma @andrewcraigtupp

The latest #eruption in #Iceland has produced the largest #volcanic SO₂ cloud measured to date in the 2023-24 #Reykjanes Fires, consistent with reports that it is the most intense episode so far. Data: @CopernicusEU #Sentinel5P #TROPOMI. @Vedurstofan @rockhardIES @Alberto_Carac

A hotspot #volcano erupted over the weekend - but not where many people were expecting. The #eruption of #Fernandina (#Galápagos Islands, #Ecuador) is producing high SO₂ emissions, similar to its prior eruptions in 2017, 2018 and 2020. Data: @CopernicusEU #Sentinel5P #TROPOMI