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Research dossier · General Reference

1987 Ecuador earthquakes

March 1987 earthquakes in Ecuador

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 2, 2026
Entity authorityQ4583671 ↗
Source-derived summary

The 1987 Ecuador earthquakes occurred over a six-hour period on March 6, 1987. The sequence of shocks measured 6.7, 7.1, and 6.0 on the moment magnitude scale. The main shock had a maximum Mercalli intensity of IX (Violent). The earthquakes were centered in Napo Province in northeast Ecuador; the epicenters were on the eastern slopes of the Andes, about 75 km ENE of Quito and 25 km north of Reventador Volcano. The earthquakes caused about 1,000 deaths. Four thousand people were missing and damage was estimated at US$1 billion.

See also

Mass wasting

References

Sources

External links

Officials Fear Quake Killed 300 in Ecuador – Los Angeles Times

300 reported dead and 4,000 missing in Ecuador quakes – The New York Times

The International Seismological Centre has a bibliography and/or authoritative data for this event.

Editorial summary

“1987 Ecuador earthquakes” enters the record as march 1987 earthquakes in Ecuador. Crown Archives preserves that source wording while asking what Ecuador, earthquakes and March can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1987—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Ecuador, earthquakes and March.
Editorial analysis

Why this record matters

“1987 Ecuador earthquakes” is worth following because a concise public description often conceals a longer documentary argument. Here, Ecuador, earthquakes and March provides the most credible route into that argument.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q4583671. The first chronological checks are 1987.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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.

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  1. Establish the record: confirm the title “1987 Ecuador earthquakes”, its source revision and the description used here.
  2. Expand the search: follow 1987 Ecuador earthquakes primary sources, 1987 Ecuador earthquakes archive and Ecuador 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

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Source & attribution

This entry incorporates text from “1987 Ecuador earthquakes” 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.