Richard Walker's Avatar

Richard Walker

@richardthomasw.bsky.social

Geologist studying earthquakes, active faults, and regional tectonics. Based at Oxford University. You can find out more about my work at https://quakesincentralasia.org

174 Followers  |  129 Following  |  11 Posts  |  Joined: 21.08.2023
Posts Following

Posts by Richard Walker (@richardthomasw.bsky.social)

Post image

The Department of Earth Sciences and St Peter's College are recruiting an Associate Professor (or Professor) in Earth Surface Processes to join our thriving academic community!

earth.web.ox.ac.uk/vacancies

20.02.2026 10:22 โ€” ๐Ÿ‘ 13    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

โš’๏ธ๐ŸงชFiery Mud Volcano Eruption!

The DaลŸmษ™rdan (Dashmardan) mud volcano in Azerbaijan erupted ~16:50 on the 30th Jan 2026. The eruption lasted ~15 mins and was accompanied by a pillar of flame several hundred meters high. DaลŸmษ™rdan had previous documented eruptions in 1866, 1954, 1976, 1986 and 2011.

31.01.2026 14:07 โ€” ๐Ÿ‘ 224    ๐Ÿ” 101    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 12
Preview
paleoseismicity.org | The online community for paleoseismicity, neotectonics, earthquake geology and archeoseismology Paleoseismicity.org is a page dedicated to scientists and everyone else interested in paleoseismology, archaeoseismology, neotectonics, earthquake archaeology, earthquake engineering and related topic...

When paleoseismology becomes uncomfortable: a short fault scarp in a mature orogen.
By @speleojacek.bsky.social and Christoph
paleoseismicity.org/when-paleose...

14.01.2026 20:01 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Extent, timing, and cause of Quaternary uplift along the Atlantic margin of Morocco Primary Supervisor: Richard Walker

New fully-funded DPhil project with Professor Richard Walker (@richardthomasw.bsky.social) researching the extent, timing, and cause of Quaternary uplift along the Atlantic margin of Morocco!

For more information visit our website
www.earth.ox.ac.uk/extent-timin...

11.12.2025 10:00 โ€” ๐Ÿ‘ 3    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image Post image

China has started to build a mega dam across Yigong Tsangpo River. Risky venture ? IMO, yes.

Valleys have steep side that are prone to landslides - some have created landslide dams that blocked the river. These have later failed generating a massive flood.
earthobservatory.nasa.gov/images/78293...

10.12.2025 09:04 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Very nice! @faultydata.bsky.social

04.12.2025 07:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image Post image

23 November 1405
Mw7.5 earthquake destroyed Neyshabur/Nishapur, Rasavi Khorasan province, NE Iran, burying in its ruins many of the inhabitants. Other devastating EQs hit the town in 1209, 1270, 1389 and 1673.
doi.org/10.2307/4299...
doi.org/10.1785/BSSA...
doi.org/10.1785/BSSA...

23.11.2025 12:02 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

Iran is facing its worst drought since at least six decades! ๐Ÿ˜ฑ๐Ÿ”ฅ๐Ÿ’ง

As a result the iconic Damavand (5,609 m asl), Iran's highest peak, was snow-free at mid-autumn, which appears to be unprecedented! โ„๏ธ๐Ÿ˜ฐ

This stratovolcano had a 3.4 km ice cover in 2002... likely gone today! ๐ŸงŠ ๐Ÿ“ˆ

๐Ÿ“ฝ๏ธ @IranIntl_En

20.11.2025 13:06 โ€” ๐Ÿ‘ 41    ๐Ÿ” 18    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Video thumbnail

UTTERLY SURREAL LOW ANGLE GLACIER SLIDE!! ๐Ÿ˜ฎ๐Ÿ˜ฑ

On Saturday at 11:00 am, a 2 km-long, 25 m-high, and 150-200 m in width section detached off the Ismoil Somoni Glacier (Tajikistan) and slid down the gorge! ๐ŸงŠ๐ŸŒŠ

asiaplustj.info/en/node/354309
๐Ÿ“ฝ๏ธ via @volcaholic1

28.10.2025 16:10 โ€” ๐Ÿ‘ 284    ๐Ÿ” 142    ๐Ÿ’ฌ 13    ๐Ÿ“Œ 28
Perspective view showing merged topography and bathymetry for the South Caspian Basin and its surroundings, with the coastlines shown as thin black lines. Faults are mapped with solid lines for higher confidence and dashed lines for lower confidence. NE-SW trending folds in the deeper parts of the basin are shown using dashed lines with diamond decorations. Large submarine landslides visible in the bathymetry are highlighted with translucent polygons. GNSS data from Kadirov et al. (2014) shows the convergence of the Kura Basin with Eurasia taken up by the KFTB and the Caucasus. The triangular region bounded by the Alat Fault and the Sumquayit Fault is moving eastward relative to the Kura Basin, and appears to extrude into the SCB, possibly contributing the folding of offshore sediments. The South Caspian Basin (SCB) velocity vector located offshore is from Dodds et al. (2022) who used the rates of the basin-bounding faults to infer the velocity of the basin.

Perspective view showing merged topography and bathymetry for the South Caspian Basin and its surroundings, with the coastlines shown as thin black lines. Faults are mapped with solid lines for higher confidence and dashed lines for lower confidence. NE-SW trending folds in the deeper parts of the basin are shown using dashed lines with diamond decorations. Large submarine landslides visible in the bathymetry are highlighted with translucent polygons. GNSS data from Kadirov et al. (2014) shows the convergence of the Kura Basin with Eurasia taken up by the KFTB and the Caucasus. The triangular region bounded by the Alat Fault and the Sumquayit Fault is moving eastward relative to the Kura Basin, and appears to extrude into the SCB, possibly contributing the folding of offshore sediments. The South Caspian Basin (SCB) velocity vector located offshore is from Dodds et al. (2022) who used the rates of the basin-bounding faults to infer the velocity of the basin.

Published in #GJI Geophysical Journal International: "Fault creep in the fluid-rich Kura Basin, Azerbaijan, imaged with InSAR", Johnson et al. This is Fig. 11: read the paper at academic.oup.com/gji/article/... @oxfordacademic.bsky.social @royalastrosoc.bsky.social

12.09.2025 08:23 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Preview
BBC Sounds - Music. Radio. Podcasts Listen without limits, with BBC Sounds. Catch the latest music tracks, discover binge-worthy podcasts, or listen to radio shows - all whenever you want.

Zakeria Shnizai was featured on the BBC Science in Action podcast this week, speaking about the recent #earthquakes in #Afghanistan and the main causes of the countryโ€™s vulnerability to earthquakes

Listen here: www.bbc.co.uk/sounds/play/...

05.09.2025 12:45 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Detailed Active Fault Map of the Spin Ghar Fault System and Related Seismicity in Eastern Afghanistan | ฯ„eฮบฯ„oniฮบa

Link to the paper published in TEKTONIKA #DOAJ @wearetektonika.bsky.social 2/2 โš’๏ธ

tektonika.online/index.php/ho...

01.09.2025 09:43 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Geological cross section across the Jalalabad basin shows several thrust faults dipping to the north-west

Geological cross section across the Jalalabad basin shows several thrust faults dipping to the north-west

Section ๐Ÿ‘‡ from Shnizai & Walker in Tektonika 2024 @wearetektonika.bsky.social shows structure of Jalalabad basin, E #Afghanistan.
It's not right across the recent #earthquake but more to the W. The earthquake may have occurred on a thrust fault equivalent to the one to the left of the section. 1/2 โš’๏ธ

01.09.2025 09:41 โ€” ๐Ÿ‘ 18    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Yes, completely. We were just passing through and had a short stop

20.08.2025 17:13 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

We happened to visit the rupture today, on their anniversary!

19.08.2025 12:05 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image Post image Post image Post image

2 August 1885 21:20 UT (2:20 of 3rd LT)
M6.9-7.6 earthquake destroyed Belodovskoe and Karabalta, west of Bishkek (Kyrgyzstan), killing 54 people. Other Northern Tien Chan EQs in 1887, 1889 and 1911.
caiag.kg/en/projects/...
academic.oup.com/gji/article/...
nyshistoricnewspapers.org/lccn/sn83045...

02.08.2025 14:55 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Very happy to share this documentary that documents some of the work of our team and our collaborators in learning more about the earthquakes of Central Asia. @jrarrowsmith.bsky.social

18.06.2025 14:35 โ€” ๐Ÿ‘ 8    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

SPEECHLESS BEFORE / AFTER #BLATTEN

The magnitude of destruction after the 3:24 pm collapse of Birch Glacier is immense! ๐Ÿ˜ฑ

All the forest has been razed and the ice/wood/debris dammed the Lonza river ๐ŸŒŠ

Some buildings of Blatten are buried ๐Ÿ 

๐Ÿ“ท Pomona

28.05.2025 15:34 โ€” ๐Ÿ‘ 633    ๐Ÿ” 374    ๐Ÿ’ฌ 18    ๐Ÿ“Œ 51
Video thumbnail

Watch the ground break and move during the magnitude 7.7 #Myanmar #earthquake. This footage shows the incredible power of the earthquake that devastated parts of Myanmar and #Thailand. My thoughts are with the people impacted by this event. ๐Ÿ’”

๐Ÿงชโš’๏ธ

12.05.2025 20:14 โ€” ๐Ÿ‘ 143    ๐Ÿ” 33    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 5
Post image Post image Post image Post image

10 May 1997 7:58 UT
Mw7.3 Zirkuh earthquake along Abiz Fault, east of Qaen, South Khorasan, NE Iran, destroyed 10,000 houses, killing 1567 people in Iran and 5 in Afghanistan. The seismic sequence begun in 1968.
earthquake.usgs.gov/earthquakes/...
doi.org/10.1111/j.13...
nyshistoricnewspapers.org

10.05.2025 11:19 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image Post image Post image Post image

1 May 1929 15:38 UT
Mw7.2 earthquake and aftershocks, in the Kopet Dag, at Iran-Turkmenistan border, destroyed villages and caused 3800 deaths, most in Iran. The Quchan 1871-95 EQs were in the same fault zone.
earthquake.usgs.gov/earthquakes/...
jstor.org/stable/74468...
chroniclingamerica.loc.gov

01.05.2025 14:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Post image Post image Post image Post image

25 April 1966 23:23 UT (5:23 of 26th LT)
Mw5.2 earthquake destroyed Tashkent, Uzbekistan, killing 15 to 200 people and leaving 300,000 homeless - very shallow and near urban center.
earthquake.usgs.gov/earthquakes/...
doi.org/10.1016/j.so...
en.wikipedia.org/wiki/1966_Ta...
e-newspaperarchives.ch

25.04.2025 13:41 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

We are excited to be a part of a new multidisciplinary research initiative for sustainable natural resources. The Oxford EARTH programme aims to address the challenges in natural resources underpinning the net zero energy transition ๐ŸŒŽ

25.03.2025 16:44 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
The Mediterranean Sea wasn't always a sea
YouTube video by Hannah Fry The Mediterranean Sea wasn't always a sea

A short introduction to the Miocene paleogeography of #Almeria and the #Alboran sea by Hannah Fry โ€˜Geology is cool man..โ€™

youtube.com/shorts/jt9Wv...

11.03.2025 09:06 โ€” ๐Ÿ‘ 16    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Earthquakes in North Africa: a reconnaissance of active faulting along the margins of the Atlas mountains of Morocco โ€“ Earthquakes in Central Asia

Our blog has been a bit quiet over these winter months, but I have added a new article describing our recent trip to Morocco, working with scientists from Mohammed V University in Rabat to understand more about earthquake sources around the Atlas mountains.

quakesincentralasia.org/research-upd...

07.03.2025 19:02 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

The team is now fully assembled for the Atlas mountains fieldtrip! Looking forward to seeing some faults tomorrow

28.02.2025 18:51 โ€” ๐Ÿ‘ 10    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

These deep water sources are likely to be increasingly important, but we know so little of their global distribution due to lack of data and study. Repurposed industrial data may hold the key!

28.02.2025 12:15 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Rising risks of sliding slopes in High Mountain Asia A new study has predicted an increase in landslide hazards in High Mountain Asia. The study authors linked higher emissions of greenhouse gases to the potential for higher risks from landslides.

A new study highlights the rising risks of sliding slopes in High Mountain Asia nsidc.org/news-analyse...

Supplementing the research paper, the researchers released a new dataset, the 'High Mountain Asia Daily 5km Landslide HazaAccrd Indicator'.

@davepetley.bsky.social @richardthomasw.bsky.social

19.02.2025 16:46 โ€” ๐Ÿ‘ 5    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Many thanks for the link @dpmanchee.bsky.social

19.02.2025 19:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Surface Rupturing Earthquakes of the Greater Caucasus Frontal Thrusts, Azerbaijan Two paleoseismic trenches near Goychay and Agsu, Azerbaijan provide evidence of at least three surface rupturing events Events occurred 334โ€“118 BC, AD 1713โ€“1895, and AD 1872โ€“2003. The latter two ...

We wrote a recent paper on the potential source of this earthquake, based upon paleoseismic trenching - see agupubs.onlinelibrary.wiley.com/doi/full/10....

13.02.2025 15:26 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0