iiinova — where your digital self keeps evolving

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Seismological Society of America @seismosocam.bsky.social · 28/08/2026

Presenting SDpy — stress drop in Python! This is an open-source Python package for estimating earthquake stress drop based on spectral fitting and spectral ratio methods. Find out more, in #SRL. ⚒️ buff.ly/dPEd5K6

Workflow of SDpy (stress drop in Python).

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 27/08/2026

Mw=6.0, EASTERN GULF OF ADEN (Depth: 6 km), 2026/08/27 21:07:38 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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Dr. Judith Hubbard @judithgeology.bsky.social · 10/08/2026

⚒️ 🧪 A deadly M7.4 earthquake just struck Colombia, causing strong shaking and collapsing buildings. The death count - now at 69 - has been increasing with passing hours. We look at the tectonics responsible for this event. earthquakeinsights.substack.com/p/deadly-m74...

earthquakeinsights.substack.com

Deadly M7.4 earthquake strikes beneath Colombia

Deep strike-slip event within a subducting slab

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Dr. Judith Hubbard @judithgeology.bsky.social · 20/07/2026

⚒️ 🧪 A M5.5 earthquake struck central Peru today, killing at least 6. What made this event so damaging? earthquakeinsights.substack.com/p/deadly-m55...

earthquakeinsights.substack.com

Deadly M5.5 earthquake strikes central Peru

Shallow hypocenter + vulnerable construction = serious damage

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Dr. Eric J. Fielding, PhD @ericjfielding.bsky.social · 10/07/2026

NISAR surface displacement map of Venezuela is the NASA Earth Observatory Image of the Day today. Map shows earthquake displacement on land is largest north of Caracas, so fault slip at depth on offshore fault greater. Fault went through Catia La Mar next to airport. science.nasa.gov/earth/earth-...

Map of north central Venezuela with surface displacements due to large earthquake shown with color. Coast from Morón east past Caracas moved as much as 60 cm west (blue tones) due to slip on fault offshore. Red tones show eastward displacement north of the fault near Morón and in Catia La Mar of the La Guaira coastal state.

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𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤 @seismoseo.bsky.social · 03/07/2026

It seems that San Sebastian-El Pilar (SS-EP) fault is the fault system where material contrast well predicts the rupture direction? I have limited background, but found studies that reported eastward rupture propagation for some M > 6 past events. agupubs.onlinelibrary.wiley.com/doi/abs/10.1...

agupubs.onlinelibrary.wiley.com

The 1967 Caracas Earthquake: Fault geometry, direction of rupture propagation and seismotectonic implications

The fault plane orientation of the July 30, 1967, Caracas earthquake (Mw = 6.6) has been a source of controversy for several years. This strike-slip event was originally thought to have occurred on a...

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𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤 @seismoseo.bsky.social · 30/06/2026

Using open-source WISP (Goldberg et al., 2026) code and with help from Claude Opus 4.8, I did very preliminary finite fault inversion of 2026 Venezuela earthquake. Producing reasonably looking result took several iterations, but with very little effort of data-fetching.

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Dr. Judith Hubbard @judithgeology.bsky.social · 28/06/2026

⚒️ 🧪 Should the Venezuela earthquake(s) be considered one event or two? We asked the USGS how they made their decision. Also: a look at their preliminary slip model. earthquakeinsights.substack.com/p/venezuela-...

earthquakeinsights.substack.com

Venezuela: One earthquake or two?

A look into the data as the USGS saw it

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Bertrand Delouis @bertranddelouis.bsky.social · 25/06/2026

Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.5 - VENEZUELA - 2026-06-24 22H04 UTC (MT solution from GFZ) A single earthquake is assumed (doublet not separated) EW Rupture plane identified at 100% Rupt propagation largely to the east Thanks to seismic records through IRIS

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Baoning Wu @baoningwu.bsky.social · 27/06/2026

A replot of the latest aftershock locations from FUNVISIS (Jun-26 night, California). It seems that there is a gap between the east rupture and the west rupture. One needs a Python script to download the catalog, using the link that the browser uses. www.funvisis.gob.ve/monitor.html

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Dr. Judith Hubbard @judithgeology.bsky.social · 26/06/2026

What have we learned about the deadly Venezuela earthquake in the last day and a half? A lot, actually. earthquakeinsights.substack.com/p/early-scie...

earthquakeinsights.substack.com

Early scientific picture of the deadly Venezuela earthquake emerges

Eastward rupture from the Boconó fault onto the San Sebastián fault

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Lucy Jones @drlucyjones.bsky.social · 10/05/2026

The Imperial Valley has seen dozens if not hundreds of these sort of swarms over the century we have recorded. A swarm is a group of quakes (dozens to thousands) where there are many quakes close in size and no obvious mainshock. Often the size will grow like we've seen here going from M3s to M4s.

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Lucy Jones @drlucyjones.bsky.social · 10/05/2026

So 2 areas with swarms ongoing in Southern California. A classic Brawley seismic zone swarm today in the Imperial Valley fault. Largest so far is M4.1. These continue until they stop so we will likely see more M3s tonight and may get bigger.

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Caltech Seismological Laboratory @caltechseismo.bsky.social · 10/05/2026

A swarm sequence has been confirmed near #Brawley, CA, #SouthernCalifornia #Earthquake. This is a typical sequence for the area, with with 81 events catalogued so far, including a M4.4 at 7:22 PDT. You can read more about it here: www.scsn.org/index.php/20...

scsn.org

Latest Earthquake Information | SCSN

For data archive access visit SCEDC

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Dr. Wendy Bohon @drwendyrocks.bsky.social · 10/05/2026

Seismic swarm happening southwest of Brawley. This area is notoriously swarmy, and had significant swarms in 2012 and 2020. 82 detected events so far, including a M4.4. More earthquakes are likely and may be felt be folks nearby.

Map showing the location of earthquakes marked by dots. The size of the dot indicates the relative magnitude and the color indicates the time. Earthquakes in Red happened in the last hour and earthquakes and Orange happened in the last day..

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Dr. Judith Hubbard @judithgeology.bsky.social · 20/04/2026

⚒️ 🧪 A M7.4 earthquake offshore northern Japan today led to a megaquake advisory: a warning that the risk of a M8+ earthquake is ten times higher than usual. What does that mean, and how does this event fit into the mosaic of earthquakes in this seismically active region?

earthquakeinsights.substack.com

Another large subduction earthquake off the coast of northern Japan...

...and another megaquake advisory is issued.

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Steven J. Gibbons @stevenjgibbons.bsky.social · 10/04/2026

As of 2026-04-10 “Relative location of seismic events using broadband frequency-wavenumber analysis: Application to the North Korean Nuclear Test Site” is published in final form in @rasjournals.bsky.social RAS Techniques and Instruments (doi.org/10.1093/rast...) Let's take a look ... (1/n)

Images from the paper “Relative location of seismic events using broadband frequency-wavenumber analysis: Application to the North Korean Nuclear Test Site” by Steven J. Gibbons in RAS Techniques and Instruments (2026) https://doi.org/10.1093/rasti/rzag023

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Dr. Judith Hubbard @judithgeology.bsky.social · 02/03/2026

Will a large earthquake be followed by an even larger event? A 2025 paper proposed a new method for classifying foreshocks in advance, with an apparent success rate above 90%. But does it work? Our deep-dive analysis found serious problems that we believe invalidate the result. Read more: ⚒️ 🧪

earthquakeinsights.substack.com

Can we tell if an earthquake is going to be a foreshock?

A recent study says yes, but we find otherwise.

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Seismological Society of America @seismosocam.bsky.social · 25/01/2026

🌟OPEN ACCESS🌟 In 2024, the magnitude 4.2 Buan, Korea earthquake and its aftershock sequence — all events in a stable continental region — were exceptionally well-recorded. A new #SRL paper reveals details. ⚒️ buff.ly/0okDOm3

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Seismological Society of America @seismosocam.bsky.social · 21/01/2026

🌟OPEN ACCESS🌟Complex Multipatch Rupture and Aftershock Characteristics of the 2024 Mw 4.2 Buan, Korea, Earthquake Sequence #SRL ⚒️ On June 11, 2024, a M4.2 event struck near Buan and was felt across South Korea. What happened? buff.ly/0okDOm3

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Seismological Society of America @seismosocam.bsky.social · 16/01/2026

In a new #BSSA paper, scientists introduce a novel mapped variable for California — the regional geological unit, defined as a combination of geomorphic provinces and geological units. This variable strongly correlates with site amplification. ⚒️ pubs.geoscienceworld.org/ssa/bssa/art...

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Seismological Society of America @seismosocam.bsky.social · 18/12/2025

The Intensity Gap: A Global Analysis of Who Responds to the Crowdsourced “Did You Feel It?” System #SRL⚒️ Who responds to DYFI? Turns out, it depends on factors like language, broadband subscriptions, and even the physical parameters of an earthquake. pubs.geoscienceworld.org/ssa/srl/arti...

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GFZ Earthquake Alerts (GEOFON) @geofon.bsky.social · 16/12/2025

Magnitude : 4.6 Region: *Eastern Russia-Northeastern China Border * Time: 2025-12-16 14:38:42 UTC Epicenter : 130.70°E 42.65°N Depth: 566 km *First posted at: 14:57 UTC* geofon.gfz-potsdam.de/eqexplorer/ev… #GEOFON #GFZ #earthquake #magnitude

Map showing the earthquake of 2025-12-16 in Eastern Russia-Northeastern China Border Region

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Princeton University Press @princetonupress.bsky.social · 14/12/2025

@thwbecker.bsky.social and Claudio Faccenna's Tectonic Geodynamics is a comprehensive, integrative approach to tectonics and geodynamics for students and researchers. Out now (6 Jan UK pub)! Explore a free preview: press.princeton.edu/books/hardco... #EarthScience #Science #Geodynamics

Tectonic Geodynamics by Thorsten Becker and Claudio Faccenna. A comprehensive, integrative approach to tectonics and geodynamics for students and researchers.

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𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤 @seismoseo.bsky.social · 12/12/2025

Just learned that this platform provides much flexible option to post long thread at once, compared to Twitter (not aware of their paid version). I think this is obviously superior aspect.

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𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤 @seismoseo.bsky.social · 12/12/2025

Our team studied the Mw 4.2 earthquake in South Korea last year and the work has just been published in SRL. I was fortunate to lead the research as the first author, mainly contributing on the source time function analysis using Empirical Green's Function approach.

pubs.geoscienceworld.org

Complex Multipatch Rupture and Aftershock Characteristics of the 2024 Mw 4.2 Buan, Korea, Earthquake Sequence | Seismological Research Letters | GeoScienceWorld

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Stephen Hicks @seismo-steve.bsky.social · 22/11/2025

This figure from a perspective piece on our paper by Virginie Pinel beautifully illustrates our proposed magma-pumping mechanism! www.science.org/doi/10.1126/...

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Anthony Lomax @alomaxnet.bsky.social · 06/12/2025

After a 3.3-magnitude earthquake in north-west England on Wednesday night, "Trains were halted after a suspected AI-generated picture that seemed to show major damage to a bridge appeared on social media". So there we are 😱 www.bbc.com/news/article...

bbc.com

Trains cancelled over fake bridge collapse image

Rail services were cancelled after a 'hoax' picture of a damaged bridge appeared on social media

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Anthony Lomax @alomaxnet.bsky.social · 09/12/2025

NLL-SC relocation of M7 Dec 6 #Alaska #Yukon Hubbard Glacier #earthquakes and seismicity since 2020. UPDATED with events throug Dec 9. Relocation catalog: doi.org/10.5281/zeno...

Epicenter map of NLL-SSST-coherence relocated seismicity for the period 2020 to 9 Dec 2025 in the area surrounding the M7 Dec 6 #Alaska #Yukon Hubbard Glacier #earthquake sequence. Purple lines show Quaternary faults from https://www.usgs.gov/programs/earthquake-hazards/faults

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Bertrand Delouis @bertranddelouis.bsky.social · 08/12/2025

Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.6 Japan Earthquake, 2025-12-08 14:15:10 (UTC) Plane shallow dipping to the East (strike 179) shown. Rupt very concentrated around the hypocenter, far from and much deeper than the trench. Thanks to seismic records through IRIS

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Dr. Alice-Agnes Gabriel @inseismoland.bsky.social · 08/12/2025

Huge Congratulations to Phd Student Jeena Yun for having two companion papers published in JGR Solid Earth agupubs.onlinelibrary.wiley.com/doi/10.1029/... and agupubs.onlinelibrary.wiley.com/doi/10.1029/...! In the first paper she explores the role of heterogeneous friction and stress in controlling

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Bertrand Delouis @bertranddelouis.bsky.social · 06/12/2025

Auto solution FMNEAR (Géoazur/OCA) with regional records for the M 7.0 - Yakutat, SOUTHERN YUKON TERRITORY, CANADA Earthquake, 2025-12-06 20:41:49 (UTC) Thanks to the seismic records provided through IRIS

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Jascha Polet @jascha.bsky.social · 06/12/2025

M6.9 Yakutat #earthquake is located very close to the border of the USA and Canada. Preliminary results from GFZ Potsdam indicate relatively high non double couple component with oblique mechanism. ⚒️🧪

Historical earthquake map for the region of today’s M6.9 Yakutat earthquake generated by Jascha Polet using GMT.

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Bertrand Delouis @bertranddelouis.bsky.social · 06/12/2025

Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.0 SOUTHERN YUKON TERRITORY, CANADA Earthquake, 2025-12-06 20:41:49 (UTC) FM USG Plane oriented NW-SE (dipping to the NE) shown. Rupt propagation mainly to the NW, surface rupture likely. Thanks to seismic records through IRIS

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Dr. Judith Hubbard @judithgeology.bsky.social · 22/11/2025

A M5.5 earthquake killed at least ten people in Bangladesh today. What made this moderate event so deadly? And what do we know about seismic hazards in the country? ⚒️ 🧪 earthquakeinsights.substack.com/p/bangladesh...

earthquakeinsights.substack.com

Bangladesh shaken by deadly M5.5 earthquake

A moderate magnitude earthquake near a dense, vulnerable megacity

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Anthony Lomax @alomaxnet.bsky.social · 21/11/2025

New! We study the disruptive 2025 earthquake unrest near #Santorini using machine-learning derived seismicity as virtual stress meters at depth. We show the unrest was due to a magma dike intrusion, imaging in detail a complex, rebounding process of dike propagation. www.science.org/doi/10.1126/...

science.org

The 2025 Santorini unrest unveiled: Rebounding magmatic dike intrusion with triggered seismicity

Magmatic intrusion in Earth’s crust can lead to hazardous volcanic eruptions, but the physical processes involved remain largely hidden from direct observation. We used machine learning–derived seismi...

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Dr. Judith Hubbard @judithgeology.bsky.social · 09/11/2025

⚒️ 🧪 A M6.8 earthquake struck offshore Japan today - another large earthquake from the subduction zone that produced two recent great earthquakes. The earthquake was preceded by a "cascade up": foreshocks progressively increasing in maximum magnitude. What do we know? What might happen next?

earthquakeinsights.substack.com

M6.8 earthquake offshore Japan preceded by upward cascade of foreshocks

What do we know about seismic hazard in the Japan-Kuril subduction zone?

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Seismica @weareseismica.bsky.social · 15/10/2025

⚠️ Faults don’t slip evenly!! Varying slip rates along faults drive complex earthquake cycle patterns, yet they are overlooked in seismic hazard assessments. Read more: seismica.library.mcgill.ca/article/view...

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Dr. Judith Hubbard @judithgeology.bsky.social · 11/10/2025

It was a pleasure to contribute to this article, which talks about how AI contributes to seismology - indeed, we have seen tremendous progress in the use of machine learning to detect small events. 1/

arstechnica.com

“Like putting on glasses for the first time”—how AI improves earthquake detection

AI is “comically good” at detecting small earthquakes—here’s why that matters.

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Thomas R. Walter @trwalter.bsky.social · 24/09/2025

New paper alert. Volcanic crisis reveals coupled magma system at Santorini and Kolumbo. Great work led by Marius and Jens, thanks all for working on that together! It can be found in today’s issue of Nature. www.nature.com/articles/s41...

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Jannes Münchmeyer @jannesmunch.bsky.social · 11/08/2025

SeisBench v.10 is out and it's time for some new models: - SkyNet allows picking regional phases and can even distinguish Pn, Pg, Sn, Sg (beware of the Terminator though) - SeisDAE brings easily retrainable seismic waveform denoising Check out all changes here: github.com/seisbench/se...

github.com

Release SeisBench v0.10 - SkyNet, SeisDAE and a more powerful model API · seisbench/seisbench

Major updates The SkyNet model is now available in SeisBench. SkyNet is specifically designed to pick phase arrivals at regional distances (up to 20 degree) and also comes with a set of weights to...

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Dr. Judith Hubbard @judithgeology.bsky.social · 14/09/2025

⚒️ 🧪 A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th. What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door? earthquakeinsights.substack.com/p/m74-earthq...

earthquakeinsights.substack.com

M7.4 earthquake shakes Kamchatka: largest aftershock of the M8.8 earthquake

How does it fit into the seismic sequence?

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Bluesky USGS Quakebot @usgs-quakebot.bsky.social · 14/09/2025

M3.6 #earthquake detected 15 km NNE of Pine Valley, CA at 9/13/2025 7:02:41 PM PDT This reflects data from the U.S. Geological Survey that is subject to change. Visit the USGS page linked below for the latest #quake information

earthquake.usgs.gov

M3.6 - 15 km NNE of Pine Valley, CA

A magnitude 3.6 earthquake located 15 km NNE of Pine Valley, CA was detected at 9/13/2025 7:02:41 PM PDT. This information is subject to change. Please visit the USGS event page for up-to-date details.

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Dr. Judith Hubbard @judithgeology.bsky.social · 06/09/2025

⚒️ 🧪 If you've seen breathless reporting about a seismic swarm near a "supervolcano" in northern Nevada, don't worry: that is just where Yellowstone was, 15 million years ago. There is no supervolcano there now. But the swarm, and the geology here, is pretty neat! Read about it in our latest post:

earthquakeinsights.substack.com

Seismic swarm rattles northern Nevada

There is no supervolcano here, despite claims in disreputable tabloids

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 31/08/2025

Mw=6.0, SOUTHEASTERN AFGHANISTAN (Depth: 8 km), 2025/08/31 19:17:34 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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Seismological Society of America @seismosocam.bsky.social · 19/07/2025

🔥OPEN ACCESS+PRESS RELEASE🔥 A new #TSR study suggests that the 28 March 2025 magnitude 7.8 Myanmar earthquake's southern section ruptured at supershear velocity, reaching speeds of 5 to 6 kilometers per second. PR: www.seismosoc.org/news/first-a... Paper: pubs.geoscienceworld.org/ssa/tsr/arti...

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Dr. Judith Hubbard @judithgeology.bsky.social · 18/07/2025

⚒️ 🧪 A M7.3 earthquake struck offshore Alaska yesterday. This is the sixth earthquake above M7 in this small stretch of the subduction zone since 2020. This was a weird strike-slip earthquake, reminiscent of a similar quake in 2020. Did these ruptures happen in the slab, the upper plate - or both?

earthquakeinsights.substack.com

Magnitude 7.3 earthquake in the Shumagin Gap, Alaska

Another exciting strike-slip earthquake in a classic subduction setting

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