CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

1960 Valdivia earthquake

9.4–9.6 magnitude earthquake in Chile

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 6, 2026
Entity authorityQ212618
Source-derived summary

On 22 May 1960, an earthquake and tsunami occurred in Chile, devastating the city of Valdivia. Most studies have placed it at 9.4–9.6 on the moment magnitude scale, making it the strongest earthquake ever recorded, while some studies have placed the magnitude lower than 9.4. It occurred in the afternoon (19:11:14 UTC, 15:11:14 local time), and lasted 10 minutes. The resulting tsunamis affected southern Chile, Hawaii, Japan, the Philippines, eastern New Zealand, southeast Australia, and the Aleutian Islands.

The epicenter of this megathrust earthquake was near Lumaco, approximately 570 kilometres (350 mi) south of Santiago, with Valdivia being the most affected city. The tremor caused localized tsunamis that severely battered the Chilean coast, with waves up to 25 metres (82 ft). The main tsunami traveled across the Pacific Ocean and devastated Hilo, Hawaii, where waves as high as 10.7 metres (35 ft) were recorded over 10,000 kilometres (6,200 mi) from the epicenter.

The death toll and monetary losses arising from this widespread disaster are not certain.

Various estimates of the total number of fatalities from the earthquake and tsunamis have surfaced, ranging between 1,000 and 6,000 killed. Different sources have estimated the monetary cost ranged from US$400 million to $800 million (or US$4.4 billion to $8.7 billion in 2025, adjusted for inflation).

Editorial summary

This brief starts where responsible research should: with the source description of “1960 Valdivia earthquake” as 9.4–9.6 magnitude earthquake in Chile. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1960, 2025—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Valdivia, earthquake and magnitude can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as 9.4–9.6 magnitude earthquake in Chile. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q212618. The Library of Congress control number is sh2012000051. Authority coordinates are -38.143, -73.407. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1960 and 2025.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “1960 Valdivia earthquake”, its source revision and the description used here.
  2. Expand the search: follow 1960 Valdivia earthquake primary sources, 1960 Valdivia earthquake archive and Valdivia research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “1960 Valdivia earthquake”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from 1960 Valdivia earthquake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.