# Small undersea volcanoes may unleash outsized tsunamis

> **Open Intelligence Dossier** · First detected: 2026-09-23 15:00 UTC · Category: Science

## Executive Summary
4 news sources are covering this Science story right now — PULSE is tracking how fast it spreads.

## Intelligence Brief
"Small undersea volcanoes may unleash outsized tsunamis" is generating significant coverage in the Science category, with 4 articles from 4 distinct sources tracked by PULSE so far.


Outlets currently covering the story include The Brighter Side of News, Energies Media, Nature and Ars Technica. PULSE measures a story's velocity from how quickly new articles appear and how many independent newsrooms join the coverage.


This brief was generated by PULSE's extractive engine from coverage metadata only. The latest headlines from every source are listed below; the velocity chart shows how the story is developing in real time.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Tech Explorist | Hunga volcano’s seafloor collapsed 700 meters during eruption | [Source Link](https://news.google.com/rss/articles/CBMinwFBVV95cUxNc01oa255c1V4WmIybE5KTTgxbVh0MEREamdmMDUwMGFOYTd2RXUxaXoya3NOU2RhZjgwN3RBdUptcTJYNjdGVFhjSmtWeUlkY0FzVDA4MXRnMVNuNy1nRWpIaE9PRElSRlloZTNaZEJGYVVtSnR1YUk0SjZkdElSZndBMk5qSkxjZThXNmxUOEdzV0l5WWlrOWNGLVlaVUk?oc=5) |
| AMS Headlines | A Triple Jeopardy Flood Event | [Source Link](https://news.google.com/rss/articles/CBMie0FVX3lxTFBjX2FSanIzZl9LMTlkVldKSEh3bHgtX1RnclBIbC1tbXB5WlF1UGpJSVdUOTdYY1ppMTB6X0M3WUQtX3gyUzA5dzJuSFo3MVppNXNOZHE1RkJ2aWJFTndEY3hJeWd6S1B0dEFMeFhXZEl2Y2lFZjJidUR6TQ?oc=5) |
| SuaraGarut.ID | Researchers Detail Rapid Caldera Collapses and Geothermal Fast Drilling | [Source Link](https://news.google.com/rss/articles/CBMif0FVX3lxTE5KTWh4V3luczF0NG9ydDROekNpMWlmanU0aEUtbTVFMkJJZmR1X0tTdG4zM001aE1VZmtsSW5OeE05RUtKVW1scVFzSGUyVHMyUHk3bUY0M2hyWG5TaUhlaW5veW9Tc1AzOFRBcGZvRHR6aHVYOTFzNUhSY3lDMlk?oc=5) |
| Phys.org | Scientists reconstruct one of this century's most explosive volcanic eruptions to explore its role in a tsunami | [Source Link](https://news.google.com/rss/articles/CBMijAFBVV95cUxPck9CSk0xQlZuMVp3SmJrZ282NFVxWmYwQWNTVjF1NWlNLXE5LW54OU55VzN4VjZ3MFlWSGQtam1CbEV4T1BGNEloX0Nxd3pCaWJLSktVV2NMN19mWFNnUFpLMlBIVmNRSUpCZUN0SkwwMzhaZVNFUHJiUUNsU0hoU1JORUtJeUxNb3hlRg?oc=5) |
| The Brighter Side of News | Hunga Tonga’s record-breaking eruption removed 900 metric tons of methane per day | [Source Link](https://news.google.com/rss/articles/CBMiuwFBVV95cUxNVl9CMkxyVEJkTzRWTnNLVHJpM09IZkNDUGlZZEFLMUkwa3Z3LXpQandLRm9iMmFRQkhqYWYzY1RGc0VaeXpQakZnNlpjeUJpNl9xTlYxbkI1d25QQ0hhazJaRlFQaW82dkhYOHd2SWZ0cFI4WDF4eTh5S2IyOVE3dXZBVTZpd0xsYWstcElOTnZSRWRBbHVYNFYxd29lU0dKVFRWZ1BlTXhta0VFZVdHNDdhSkxoVjEzN3l3?oc=5) |
| Energies Media | Hunga Tonga's eruption accidentally "vacuumed up" methane from the sky in a way scientists had never witnessed before, and the culprit was a chemical chain reaction triggered by ash, seawater, and sunlight that tracked across an entire ocean for ten days | [Source Link](https://news.google.com/rss/articles/CBMibkFVX3lxTE9Db0ZBTmRCSU85UjEzeXVLOWs1RnNJZldzVkZQNlpTSTlSLVpQNVpqS0Vhb01vZGhFajJSUXNrb0Fiek9JM2xObDdsdFVreFp1VGdPRE5xZHgybzJRWFdZbVJWdjVRSldBOThvbDZ3?oc=5) |
| Nature | Sudden collapse of submarine volcano drives extreme hazards | [Source Link](https://news.google.com/rss/articles/CBMiX0FVX3lxTE84NGRfM1Q2MnlYSjk4aUZLN0FZSnhhZWRVNmJKRWhmb0J1U3d0bENiM1JGQW8yMUIwV2JTeWNsUkplUFdtWXlaZVJ3NUlhZU94YlUzbWkzU3hhVk9CUUI0?oc=5) |
| Ars Technica | Small undersea volcanoes may unleash outsized tsunamis | [Source Link](https://news.google.com/rss/articles/CBMimwFBVV95cUxPMm0xMTlsSnR4RjRMc1I5NzVjeXFrZ2I3T25fa1o1Q2dubHRGX29KVDcxa1h1OHpoZkwwMTRYRUJQVTB6cFpqN2puM2RRMHdPaWhheFNXWDdYWnBqNEp5cTRnZ2tjSy1JRk5scTFzdjJqRnVFVThNbTJIWVB0X3BlSkhsWmlzb295T1ZUdzJ0NUpWZnRtVmE4bEJOQQ?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-23/small-undersea-volcanoes-may-unleash-outsized-tsunamis*