Szabolcs Harangi
@sharangi.bsky.social
Volcanologist and petrologist from Hungary. Professor, Head of Volcanology Research Group and Volcano blogger
Eruption of low-T crystal mush and determination of amphibole-melt partition coefficient relevant for silicic magmas close to the thermal minimum. Thermomechanical reactivation can lead to reawakening of a volcano after prolonged quiescence!
New paper: link.springer.com/article/10.1...
New paper: link.springer.com/article/10.1...
Petrogenesis and amphibole–melt trace element partitioning of the 156 ka Haramul Mic crystal-rich dacite, Ciomadul, Romania - Contributions to Mineralogy and Petrology
The 156 ka, crystal-rich (~ 40 vol%) Haramul Mic dacite represents eruption of a crystal mush. It marks the first eruptive product of the Ciomadul Volcanic Complex, East-Central Europe, following at l...
link.springer.com
October 18, 2025 at 4:24 PM
Eruption of low-T crystal mush and determination of amphibole-melt partition coefficient relevant for silicic magmas close to the thermal minimum. Thermomechanical reactivation can lead to reawakening of a volcano after prolonged quiescence!
New paper: link.springer.com/article/10.1...
New paper: link.springer.com/article/10.1...
drone picture shows lava dome filled the crater of the Lewotobi volcano taken yesterday by Mbah Lurah. This might explain the initial Vulcanian phase of the large eruption occurred today.
July 7, 2025 at 2:37 PM
drone picture shows lava dome filled the crater of the Lewotobi volcano taken yesterday by Mbah Lurah. This might explain the initial Vulcanian phase of the large eruption occurred today.
Lewotobi, Flores, Indonesia - vulcanian to subplinian eruption with pyroclastic flows today
photo: @jose465886 twitter/X
photo: @jose465886 twitter/X
July 7, 2025 at 1:22 PM
Lewotobi, Flores, Indonesia - vulcanian to subplinian eruption with pyroclastic flows today
photo: @jose465886 twitter/X
photo: @jose465886 twitter/X
Reposted by Szabolcs Harangi
#IAVCEI2025 It was my absolute privilege to coordinate a fantastic group of hard working colleagues that delivered a Scientific assembly of which we are proud
July 5, 2025 at 5:04 PM
#IAVCEI2025 It was my absolute privilege to coordinate a fantastic group of hard working colleagues that delivered a Scientific assembly of which we are proud
The crowd of volcanologists!… the #IAVCEI2025 general assembly started with important messages such as “curiosity drives human progress…” and “science and education is the best investment to the future…”
June 29, 2025 at 9:30 PM
The crowd of volcanologists!… the #IAVCEI2025 general assembly started with important messages such as “curiosity drives human progress…” and “science and education is the best investment to the future…”
Understanding processes in trans-crustal magma reservoirs - come and apply for a 2-3 years postdoctoral fellowship to a young Hungarian research group (pannonvulkan.hu)! Details of the MSCA programme are here: momentummsca.mta.hu contact: lukacs.reka@csfk.org
May 14, 2025 at 1:19 PM
Understanding processes in trans-crustal magma reservoirs - come and apply for a 2-3 years postdoctoral fellowship to a young Hungarian research group (pannonvulkan.hu)! Details of the MSCA programme are here: momentummsca.mta.hu contact: lukacs.reka@csfk.org
IAVCEI CVS goes to Hungary! A fantastic 5 days in the field to better understand deposition of volcanogenic sediments in the natural laboratory of the northern Pannonian Basin: from diatremes through ignimbrites to lahar and volcanogenic fluvial deposits with instructive discussions!
April 12, 2025 at 1:25 PM
IAVCEI CVS goes to Hungary! A fantastic 5 days in the field to better understand deposition of volcanogenic sediments in the natural laboratory of the northern Pannonian Basin: from diatremes through ignimbrites to lahar and volcanogenic fluvial deposits with instructive discussions!
Reposted by Szabolcs Harangi
🧪⚒️
Two days after the M7.7 earthquake in Myanmar, what have we learned?
Rapid seismological analyses shared by scientists suggest that the rupture was both longer and faster than expected - two factors that could have increased damage.
Read more: earthquakeinsights.substack.com/p/updates-on...
Two days after the M7.7 earthquake in Myanmar, what have we learned?
Rapid seismological analyses shared by scientists suggest that the rupture was both longer and faster than expected - two factors that could have increased damage.
Read more: earthquakeinsights.substack.com/p/updates-on...
Updates on the M7.7 Myanmar earthquake
An unusually long, possibly supershear rupture
earthquakeinsights.substack.com
March 30, 2025 at 7:43 PM
🧪⚒️
Two days after the M7.7 earthquake in Myanmar, what have we learned?
Rapid seismological analyses shared by scientists suggest that the rupture was both longer and faster than expected - two factors that could have increased damage.
Read more: earthquakeinsights.substack.com/p/updates-on...
Two days after the M7.7 earthquake in Myanmar, what have we learned?
Rapid seismological analyses shared by scientists suggest that the rupture was both longer and faster than expected - two factors that could have increased damage.
Read more: earthquakeinsights.substack.com/p/updates-on...
Reposted by Szabolcs Harangi
Today's #earthquake near Mandalay, Myanmar, had magnitude Mw 7.7 to 7.9.
Prelim. source models point to rupture duration & length of ~120s and at least 200km. It likely filled large part of seismic gap S of Sagaing (previous rupture in 1839) ⚒️ 🧪
Map from doi.org/10.1002/2013... (Wang et al.)
1/n
Prelim. source models point to rupture duration & length of ~120s and at least 200km. It likely filled large part of seismic gap S of Sagaing (previous rupture in 1839) ⚒️ 🧪
Map from doi.org/10.1002/2013... (Wang et al.)
1/n
March 28, 2025 at 4:47 PM
Today's #earthquake near Mandalay, Myanmar, had magnitude Mw 7.7 to 7.9.
Prelim. source models point to rupture duration & length of ~120s and at least 200km. It likely filled large part of seismic gap S of Sagaing (previous rupture in 1839) ⚒️ 🧪
Map from doi.org/10.1002/2013... (Wang et al.)
1/n
Prelim. source models point to rupture duration & length of ~120s and at least 200km. It likely filled large part of seismic gap S of Sagaing (previous rupture in 1839) ⚒️ 🧪
Map from doi.org/10.1002/2013... (Wang et al.)
1/n
Reposted by Szabolcs Harangi
⚒️ 🧪
A catastrophic M7.7 earthquake struck Myanmar today, rupturing ~200 km of the strike-slip Sagaing Fault.
The USGS PAGER alert is red, indicating severe damage and many fatalities. Impacts extend from Myanmar into neighboring countries, including Thailand.
What do we know so far?
A catastrophic M7.7 earthquake struck Myanmar today, rupturing ~200 km of the strike-slip Sagaing Fault.
The USGS PAGER alert is red, indicating severe damage and many fatalities. Impacts extend from Myanmar into neighboring countries, including Thailand.
What do we know so far?
Catastrophic M7.7 earthquake caused by rupture of Sagaing Fault in Myanmar
Limited reporting thus far from Myanmar, but this is a big one
earthquakeinsights.substack.com
March 28, 2025 at 5:13 PM
⚒️ 🧪
A catastrophic M7.7 earthquake struck Myanmar today, rupturing ~200 km of the strike-slip Sagaing Fault.
The USGS PAGER alert is red, indicating severe damage and many fatalities. Impacts extend from Myanmar into neighboring countries, including Thailand.
What do we know so far?
A catastrophic M7.7 earthquake struck Myanmar today, rupturing ~200 km of the strike-slip Sagaing Fault.
The USGS PAGER alert is red, indicating severe damage and many fatalities. Impacts extend from Myanmar into neighboring countries, including Thailand.
What do we know so far?
Reposted by Szabolcs Harangi
This includes the USGS Hawaiian and Alaska Volcano Observatories. HVO's Ironworks is a temporary space while a new facility is built to replace the Observatory critically damaged in 2018. Both groups are near their volcanoes. Neither has anywhere to go and both have been forbidden from telework.
Congress has just released a list of federal DOI offices to be closed under the ongoing massacre of our natural resource agencies -- it's extensive and includes many important NPS, BLM, USGS and USFWS facilities across the country. Truly horrific. democrats-naturalresources.house.gov/imo/media/do...
democrats-naturalresources.house.gov
March 2, 2025 at 3:53 PM
This includes the USGS Hawaiian and Alaska Volcano Observatories. HVO's Ironworks is a temporary space while a new facility is built to replace the Observatory critically damaged in 2018. Both groups are near their volcanoes. Neither has anywhere to go and both have been forbidden from telework.
Reposted by Szabolcs Harangi
HVO and AVO office leases are both on that list (I didn't see YVO or CVO when I skimmed it?). HVO is the oldest volcano observatory in the world and monitors the most persistently active volcanoes in the US. AVO monitors very high-risk volcanoes that can esp impact int'l air travel.
Reported by a follower (unverified at this moment): Alaska Science Center Grace Hall in Anchorage which houses the Alaska Volcano Observatory and ASC servers is on the chopping block. Moving the server room would cost upwards of $1.5 million.
March 2, 2025 at 3:19 PM
HVO and AVO office leases are both on that list (I didn't see YVO or CVO when I skimmed it?). HVO is the oldest volcano observatory in the world and monitors the most persistently active volcanoes in the US. AVO monitors very high-risk volcanoes that can esp impact int'l air travel.
something could occur NE from Santorini... current seismogram picture
February 14, 2025 at 7:14 PM
something could occur NE from Santorini... current seismogram picture
Reposted by Szabolcs Harangi
Hi Seismo-Bluesky! I decided to test a pipeline with SeisBench, PyOcto, NonLinLoc, and HypoDD on the Santorini sequence. The level of activity (>4,500 events) is truly stunning! There are repeated bursts migrating backwards and forwards, spreading outwards from a narrow, almost linear channel.
February 10, 2025 at 1:23 PM
Hi Seismo-Bluesky! I decided to test a pipeline with SeisBench, PyOcto, NonLinLoc, and HypoDD on the Santorini sequence. The level of activity (>4,500 events) is truly stunning! There are repeated bursts migrating backwards and forwards, spreading outwards from a narrow, almost linear channel.
Reposted by Szabolcs Harangi
Our (Icelandic Met Office) latest news on the Reykjanes Peninsula. Magma accumulation beneath Svartsengi continues. We are expecting a new eruption in Sundhnúks crater row.
en.vedur.is/about-imo/ne...
en.vedur.is/about-imo/ne...
The
period of increased risk of a volcanic eruption at Sundhnúkur may last for several weeks | News | Icelandic Meteorological office
en.vedur.is
February 9, 2025 at 10:50 AM
Our (Icelandic Met Office) latest news on the Reykjanes Peninsula. Magma accumulation beneath Svartsengi continues. We are expecting a new eruption in Sundhnúks crater row.
en.vedur.is/about-imo/ne...
en.vedur.is/about-imo/ne...
Reposted by Szabolcs Harangi
Sentinel-1 dInSAR data we processed over Santorini area for the period 24 January 2025 - 05 February 2025. Fringes are mostly due to atmospheric disturbance. For the past 2 weeks, there is no major volcanic deformation visible in data.
February 6, 2025 at 7:52 PM
Sentinel-1 dInSAR data we processed over Santorini area for the period 24 January 2025 - 05 February 2025. Fringes are mostly due to atmospheric disturbance. For the past 2 weeks, there is no major volcanic deformation visible in data.
Reposted by Szabolcs Harangi
I made a quick map of historical seismicity for the region of today’s M7.6 #earthquake near the Cayman Islands. This left lateral strike slip event occurred on a fault system that produced a few similar events in size & mechanism in the last decade.
(Good to see that USGS NEIC is still online!)🧪⚒️
(Good to see that USGS NEIC is still online!)🧪⚒️
February 9, 2025 at 8:31 AM
I made a quick map of historical seismicity for the region of today’s M7.6 #earthquake near the Cayman Islands. This left lateral strike slip event occurred on a fault system that produced a few similar events in size & mechanism in the last decade.
(Good to see that USGS NEIC is still online!)🧪⚒️
(Good to see that USGS NEIC is still online!)🧪⚒️
Reposted by Szabolcs Harangi
Kudos to @lisgallant.bsky.social for flagging that the illegal USAID shutdown paying out right now may imperil the 39 year-old Volcano Disaster Assistance Program (VDAP).
For folks who don't know VDAP, it's a transformative and vital resource for volcano hazard mitgation across the world. 🧵
For folks who don't know VDAP, it's a transformative and vital resource for volcano hazard mitgation across the world. 🧵
February 7, 2025 at 4:15 PM
Kudos to @lisgallant.bsky.social for flagging that the illegal USAID shutdown paying out right now may imperil the 39 year-old Volcano Disaster Assistance Program (VDAP).
For folks who don't know VDAP, it's a transformative and vital resource for volcano hazard mitgation across the world. 🧵
For folks who don't know VDAP, it's a transformative and vital resource for volcano hazard mitgation across the world. 🧵
Reposted by Szabolcs Harangi
🧪⚒️
A swarm of earthquakes has been rattling the Greek islands. Today marked the largest event in the swarm so far (M5.1). Schools are closed and emergency crews have deployed.
Could the swarm trigger a really big earthquake, like the M7.8 in 1956?
Read more on Earthquake Insights:
A swarm of earthquakes has been rattling the Greek islands. Today marked the largest event in the swarm so far (M5.1). Schools are closed and emergency crews have deployed.
Could the swarm trigger a really big earthquake, like the M7.8 in 1956?
Read more on Earthquake Insights:
Earthquake swarm beneath the Aegean Sea
Greek government is responding to elevated risk of large earthquake
earthquakeinsights.substack.com
February 3, 2025 at 4:25 PM
🧪⚒️
A swarm of earthquakes has been rattling the Greek islands. Today marked the largest event in the swarm so far (M5.1). Schools are closed and emergency crews have deployed.
Could the swarm trigger a really big earthquake, like the M7.8 in 1956?
Read more on Earthquake Insights:
A swarm of earthquakes has been rattling the Greek islands. Today marked the largest event in the swarm so far (M5.1). Schools are closed and emergency crews have deployed.
Could the swarm trigger a really big earthquake, like the M7.8 in 1956?
Read more on Earthquake Insights:
Reposted by Szabolcs Harangi
Between 2019 and 2023, researchers paid $8.968 billion to make papers open access. Imagine what else could be done with this money if it wasnt paid to for profit publishing companies...
👉 arxiv.org/abs/2407.16551
👉 arxiv.org/abs/2407.16551
January 27, 2025 at 12:33 AM
Between 2019 and 2023, researchers paid $8.968 billion to make papers open access. Imagine what else could be done with this money if it wasnt paid to for profit publishing companies...
👉 arxiv.org/abs/2407.16551
👉 arxiv.org/abs/2407.16551
Reposted by Szabolcs Harangi
NEW: 2024 has just been confirmed as the warmest year on record, and the first to breach the 1.5C threshold.
We used a ridgeline (Joy Division inspired) chart to visualise daily temperature anomalies since 1940.
2024 clearly stands out with 100% of its days above 1.3C and 75% above 1.5C.
We used a ridgeline (Joy Division inspired) chart to visualise daily temperature anomalies since 1940.
2024 clearly stands out with 100% of its days above 1.3C and 75% above 1.5C.
January 10, 2025 at 2:08 PM
Reposted by Szabolcs Harangi
Oh, hello there new eruption at Kīlauea's summit caldera: www.usgs.gov/volcanoes/ki...
December 23, 2024 at 1:27 PM
Oh, hello there new eruption at Kīlauea's summit caldera: www.usgs.gov/volcanoes/ki...
great, informative summary about the California earthquake!
🧪⚒️
A M7.0 earthquake struck offshore northern California today. Very strong shaking was recorded along the coast, and weak shaking reached >1,000 km away. All kinds of excitement: a ShakeAlert early warning, a tsunami warning, and a bunch of aftershocks.
So, what's up with the geology here?
A M7.0 earthquake struck offshore northern California today. Very strong shaking was recorded along the coast, and weak shaking reached >1,000 km away. All kinds of excitement: a ShakeAlert early warning, a tsunami warning, and a bunch of aftershocks.
So, what's up with the geology here?
Magnitude 7.0 earthquake strikes offshore Cape Mendocino, California
Reports of shaking >1,000 km away.
earthquakeinsights.substack.com
December 6, 2024 at 6:29 AM
great, informative summary about the California earthquake!
Reposted by Szabolcs Harangi
Taal Volcano in the Philippines experienced a phreatomagmatic eruption today (December 3, 2024) at 5:58 AM, producing a 2800-meter grey plume. The volcano remains under Alert Level 1.
(another view)
Source: MDRRMC Talisay Batangas on Facebook
(another view)
Source: MDRRMC Talisay Batangas on Facebook
December 3, 2024 at 11:39 AM
Taal Volcano in the Philippines experienced a phreatomagmatic eruption today (December 3, 2024) at 5:58 AM, producing a 2800-meter grey plume. The volcano remains under Alert Level 1.
(another view)
Source: MDRRMC Talisay Batangas on Facebook
(another view)
Source: MDRRMC Talisay Batangas on Facebook
It was a great honor to me that I was awarded the Scientist of the Year for Outreach in Hungary. In addition a minor planet discovered by Krisztián Sárneczky in 2011 was named after me, this is the 500 m wide 580619 Harangiszabolcs from the Inner Main-belt Asteroid :-)
November 21, 2024 at 8:48 PM
It was a great honor to me that I was awarded the Scientist of the Year for Outreach in Hungary. In addition a minor planet discovered by Krisztián Sárneczky in 2011 was named after me, this is the 500 m wide 580619 Harangiszabolcs from the Inner Main-belt Asteroid :-)