1928 Chachapoyas earthquake

The 1928 Chachapoyas earthquake occurred on May 14 at 17:14 local time.[3] It had a magnitude of Mw 7.2,[1] Ms 7.3,[4] or ML 7.3. Chachapoyas, Peru was almost completely destroyed. A landslide in Pinpincos caused the death of 25 people.[5][6] Many houses were damaged in Machala, Ecuador.[7] The maximum intensity was X (Extreme) on the Mercalli intensity scale.[8] The earthquake could be felt in Lima. It could also be felt in Ecuador, Brazil, and Colombia.

1928 Chachapoyas earthquake
UTC time1928-05-14 22:15:04
ISC event908668
USGS-ANSSn/a
Local dateMay 14, 1928
Local time17:14
Magnitude7.2 Mw [1]
Depth35 km (22 mi) [1]
Epicenter5.26°S 78.56°W / -5.26; -78.56 [1]
Areas affectedPeru
Max. intensityX (Extreme) [1]
Aftershocks6.9 Ms July 18 at 19:05 UTC [2]
Casualties25

Aftershock

A strong aftershock occurred on July 18, 1928, at 14:05 local time (19:05 UTC).[9] Some houses which had already been damaged in the main shock collapsed.[3]

gollark: Yes.
gollark: ```sqlnonlocality=# EXPLAIN ANALYZE SELECT url, ts_rank(fts, query) AS rank, ts_headline(fts::text, query, 'MaxWords=60') FROM pages, websearch_to_tsquery('bee') query WHERE fts @@ query ORDER BY rank LIMIT 1; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------- Limit (cost=860.79..861.06 rows=1 width=96) (actual time=35935.590..35935.594 rows=1 loops=1) -> Result (cost=860.79..874.83 rows=52 width=96) (actual time=35935.587..35935.589 rows=1 loops=1) -> Sort (cost=860.79..860.92 rows=52 width=178) (actual time=35934.109..35934.111 rows=1 loops=1) Sort Key: (ts_rank(pages.fts, query.query)) Sort Method: top-N heapsort Memory: 25kB -> Nested Loop (cost=0.25..860.53 rows=52 width=178) (actual time=444.148..35932.932 rows=349 loops=1) Join Filter: (pages.fts @@ query.query) Rows Removed by Join Filter: 10272 -> Function Scan on websearch_to_tsquery query (cost=0.25..0.26 rows=1 width=32) (actual time=0.038..0.041 rows=1 loops=1) -> Seq Scan on pages (cost=0.00..728.95 rows=10495 width=142) (actual time=10.189..289.581 rows=10621 loops=1) Planning Time: 0.184 ms Execution Time: 35935.637 ms(12 rows)```
gollark: What? Why does it say it's doing a sequential scan now? Æ all is bee.
gollark: Slower, even.
gollark: Oops, it turns out I'm accidentally sorting by it instead of the rank, but it's equally slow after fixing that.

See also

References
  1. Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 675. ISBN 978-0124406520.
  2. USGS (September 4, 2009), PAGER-CAT Earthquake Catalog, Version 2008_06.1, United States Geological Survey
  3. "Historia de los Sismos mas Notables Occurridos en El Peru (1513–1974)" (PDF). p. 51. (in Spanish)
  4. Hurtado, Jorge; Chang, Luis (2005). “Vulnerabilidad Sismica Estructural Y Efectos de Sitio" Archived 2012-03-28 at the Wayback Machine (PDF). XVII Simposio. CISMID. (in Spanish)
  5. Hurtado, Jorge; Change, Luis (2005). "Mapa de Areas de Deslizamientos por Sismos en El Peru" Archived 2012-02-27 at the Wayback Machine (PDF). Universidad Nacional de Ingeniería, Lima – Perú. (in Spanish)
  6. "II. Estudio de Caso de los Desastres del Alto Mayo, Peru, de 1990 y 1991" (PDF). p. 7–19. (in Spanish)
  7. "Línea de Tiempo". Igepn.edu.ec. Archived from the original on 2012-06-20. Retrieved 2012-08-17.
  8. "Banco de Datos de Mapas de Isosistas en El Peru" Archived 2011-10-08 at the Wayback Machine (PDF). FIC-University National de Ingenieria. (in Spanish)
  9. "Historia de los Sismos mas Notables Occurridos en El Peru (1513–1974)" (PDF). (in Spanish)
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