Jamie Farquharson

@farquharson.bsky.social

474 Followers 364 Following

Volcanologist • Archipelagan • Reads a lot • Tries hard • Professor @ Niigata University

A graph of four consecutive marathon times between 2022 and 2025. After plunging between 2022 and 2023, the times have gotten progressively longer... There is no y axis.
A graph of vertically overlapping timeseries, with a prominent spike labelled as “HTHH.” (Hunga Tonga Hunga Ha'apai) The individual timeseries traces are labelled from top-to-bottom: volcanic eruption; erupción volcánica; éruption volcanique; letusan gunung berapi; vulkanausbruch; erupção vulcânica; извержение вулкана; volkanik patlama; 火山爆发; vulkaanuitbarsting; eldgos; eruzione vulcanica; ภูเขาไฟระเบิด; ثوران†بركاني 산 분출; 火山噴火; erupsi vulkanik; የእሳተ ገሞራ ፍንዳታ.
A graph of vertically overlapping timeseries, with a prominent spike labelled as “Fagradalsfjall.” The individual timeseries traces are labelled from top-to-bottom: volcanic eruption; erupción volcánica; éruption volcanique; letusan gunung berapi; vulkanausbruch; erupção vulcânica; извержение вулкана; volkanik patlama; 火山爆发; vulkaanuitbarsting; eldgos; eruzione vulcanica; ภูเขาไฟระเบิด; ثوران†بركاني 산 분출; 火山噴火; erupsi vulkanik; የእሳተ ገሞራ ፍንዳታ.
An advertising flyer for a scientific symposium called "Volcanology in Practice". The flyer consists of a semi-transparent background image of Myoko volcano, Japan, overlain by text which reads: "www.thevolcano.world Volcanology in Practice international research symposium 7–10 October 2025 Niigata University, Japan" Beneath the text is a QR code which directs to the website. Logos of two Niigata University departments are included at the top of the image. On either side of the QR code is a logo for Niigata University and IAVCEI, respectively.
Many (workbench) vices
A scanning electron microscope image of andesite from Ruapehu volcano, Aotearoa New Zealand. The andesite is light grey, punctuated by black pores and lighter-coloured crystals. Circled in cyan is evidence of cataclastic pore collapse in the direction of pre-existing fractures (highlighted by an arrow).
A graph of inelastic compaction factor against porosity. The inelastic compaction data are all positive at low porosity and negative at high porosity. A dashed boxed near the zero line indicates where there was a data gap before. Coloured symbols fill the box, indicating our new dataset.
Side-by-side scanning electron micrograph images of andesite from Volcan de Colima, Mexico. The image on the left hand side exhibits many pores, relatively undamaged. The image on the right is mostly characterised by minute fragments of pulverised groundmass, with a signle fracture running through the centre from top to bottom.
Scanning electron micrograph image of an andesite from Volcan de Colima, Mexico, exhibiting the initial stages of cataclastic pore collapse. Two pores in the rock are variably filled with spalling fragments of groundmass.
Scanning electron microscope images illustrating the evolution of damage with strain during dilation of volcanic rocks from Kumamoto, Japan. The image is a four-panel collage of grayscale microscope images, each of which exhibits a through-running fracture from bottom left to top right. Image from Farquharson et al. 2016 Geophysical Research Letters.
A schematic of a scientific apparatus used for triaxially deforming rocks. The schematic is from Farquharson et al. 2017 Solid Earth.
Slices of battered lotus root with hot mustard filling its air holes, on a blue and white plate. Chopsticks in foreground.
“ OASPA is the nerve centre of a diverse, pandisciplinary community, and is therefore ideally positioned to facilitate cross-sector discussion and development in the open scholarship space. By facilitating knowledge and resource sharing and promoting best practices, OASPA directly contributes to the viability and sustainability of open access publishing in its various forms. OASPA has the capacity to actuate meaningful, practical changes in the global scholarly publishing ecosystem and Volcanica is enthusiastic about being able to learn from—and contribute to—something bigger than ourselves.” (Jamie I. Farquharson)
A grey, egg-shaped rock on an ash- and boulder-strewn plain. Photo taken from within Aso Caldera, Kumamoto (Japan) close to the currently active Aso volcano. The rock is approximately 1.5 m along its longest axis.
A four-panel image with photos of acid lakes in volcanic environments. (top-left) Crater Lake, Ruapehu, New Zealand (approximately 300 × 440 m). The lake is a pale blue, rimmed by craggy black basalts. There is snow in the foreground. (top-right) Emerald lakes, Tongariro, New Zealand (approximately 65 × 110 m). The lake is a rich emerald colour in the centre, abruptly grading to mustard-yellow and then rust-red at its edges. (bottom-left) Whakaari crater (White Island), New Zealand (approximately 500 × 275 m). Thick plumes of white steam rise from the green-white water. Grey tuffs and yellow-gold deposits of elemental sulphur can be seen in the foreground. (bottom-right) El Chichón, Chiapas, Mexico (approximately 370 × 470 m). The lakewater is a marbled mixture of greens, ranging from a pale pastel (like a weak matcha latte) to a deep, rich moss colour. [Photographs by Mike Heap, Jamie Farquharson, Jamie Farquharson, and Graeme Alexander William Sinclair, respectively.]
Figure 3 of Zylstra et al. DOI: https://doi.org/10.1111/1365-2435.14305. The four-panel image shows data on measured vegetation dynamics for Red Tingle Forests (Australia). The uppermost panel shows "Plant height" against "Years since fire", using tree silhouettes to illustrate the data.
A photograph of a Bialetti moka pot on a wooden workbench. It is wired to a circuit board with a set of resistors, in turn attached to a 9V battery. Behind the moka is a graduated cylinder of water.
Illustration of a floating moka pot pouring coffee into a porcelain cup. Both the moka and the cup are cut away in cross-section to reveal the inner workings.
Me excitedly holding “Avians” by Timothy Gwyn
Venn diagram highlighting the key features of different types of open access in scholarly publishing
Volcàn Fuego (Guatemala) erupts through the clouds. Photo by Caitlin Wynne via @unsplash.
Scientific illustration of conceptual model of the “cryptic fragmentation” model for silicic hybrid and effusive eruptions, from Farquharson et al. 2022 https://doi.org/10.1038/s41467-022-32522-7. Inset is a photograph of an explosion plume at Cordon Caulle volcano in Chile.
Schematics of simple three-dimensional volcanic systems from Farquharson and Wadsworth (2018) https://doi.org/10.1016/j.jvolgeores.2018.09.002. The system on the left is layered like a layer cake, the one on the left has a concentric geometry like a vegetarian corndog.
A paperback copy of "Beowulf" by Maria Dahvana Headley, on a red background alongside two dragonfruits. The cover of the book is a rich blue, with a stylised red letter "b" in lowercase, wearing a crown. The tail of a tragon is intertwined with the other cover elements. It is beautiful.
Screenshot of a Spotify playlist entitled "Ode to a thorny grant proposal," featuring The Smashing Pumpkins, Mademoiselle K, Dire Straits, PJ Harvey and more
A Shinto shrine at the summit of Mt Yahiko in Japan's Niigata prefecture. The shrine is built from stone and encrusted in white lichen. It is surrounded by green vegetation.