View source for February 1923 Kamchatka earthquake

{{Short description|Earthquake}}
{{Infobox earthquake
| title = February 1923 Kamchatka earthquake
| timestamp = 1923-02-03 16:01:51
| isc-event = 911271
| anss-url = official19230203160150_30
| local-date = {{Start date|1923|02|04}}
| local-time = 04:01
| map = {{location map+| Russia Kamchatka Krai
 | relief = 1
 |width=260
 |float=center
 |border=yes
 |caption=
 |places={{Location map~|Russia Kamchatka Krai | lat = 54.486
 | long = 160.472
 | mark = Bullseye1.png
 | marksize = 40
 | position = top
 | width = 250
 | float = right
 | caption = }}
{{Location map~|Russia Kamchatka Krai|lat=53.02|long=158.65|label=[[Petropavlovsk-Kamchatskiy]]|position=left|mark=Green pog.svg}}
{{Location map~|Russia Kamchatka Krai|lat=56.23|long=162.54|label=[[Ust-Kamchatsk]]|position=left|mark=Green pog.svg}}}}
| magnitude = 8.4 {{M|w|link=y}}<ref name=USGS>[https://earthquake.usgs.gov/earthquakes/eventpage/iscgem911271#general_summary M8.4 – near the east coast of the Kamchatka Peninsula, Russia] 
[[United States Geological Survey]]</ref>
| depth = 15&nbsp;km
| countries affected = [[Kamchatka]], [[Russian Soviet Federative Socialist Republic|Russian SFSR]], [[Soviet Union]]
| intensity = {{MMI|11}}
| casualties = 3
| foreshocks = 7.2 {{M|w|src=USGS}} 1923-02-02
| location = {{coord|54.486|160.472|display=inline, title}}
}}

The '''February 1923 Kamchatka earthquake''' occurred on 3 February 1923. The [[epicenter]] was on the southeastern coast of the [[Kamchatka Peninsula]]. The [[earthquake]] triggered a [[tsunami]] with wave heights up to eight metres, causing damage as far away as [[Hawaii]].<ref name="NGDC_tsunami">{{cite web | url=http://www.ngdc.noaa.gov/nndc/struts/results?eq_0=3212&t=101650&s=18&d=99,91,95,93&nd=display | title=Comments for the Tsunami Event | publisher=[[National Geophysical Data Center]] | work=NGDC/WDS Tsunami Event Database | accessdate=15 June 2015}}</ref> The maximum perceived [[Mercalli intensity scale|Mercalli intensity]] was XI (''Extreme'').<ref name="NGDC_EQ">{{cite web | url=http://www.ngdc.noaa.gov/nndc/struts/results?eq_0=3212&t=101650&s=13&d=22,26,13,12&nd=display | title=Comments for the Significant Earthquake | publisher=[[National Geophysical Data Center]] | work=Significant Earthquake Database | accessdate=15 June 2015}}</ref> The tsunami caused two deaths in Kamchatka and one in Hawaii.

The earthquake happened 26 years before the U.S. had the capability to issue tsunami warnings, but [[Thomas Jaggar]], the director of the [[Hawaiian Volcano Observatory]], tried to warn the [[Hilo, Hawaii|Hilo]] harbormaster about the possibility of a tsunami. His warning was not taken seriously and one fisherman was killed when the tsunami hit.<ref>[https://web.archive.org/web/20190119120734/http://ptwc.weather.gov/ptwc/history.php PTWC History]</ref>

In April that same year, a smaller {{M|s}} [[April 1923 Kamchatka earthquake|7.2 earthquake struck north]] of where the February earthquake was. It generated a much larger tsunami with run-ups of up to 30 meters, killing at least 36 people.<ref name="Borisov">{{cite web |last1=Borisov V.I. |title=Forgotten Tragedy |url=http://www.kamchatsky-krai.ru/geography/article/borisov.htm |website=kamchatsky-krai.ru |date=2002 |access-date=5 June 2021 |language=Russian}}</ref> This earthquake is considered a [[Doublet earthquake|doublet]] of the April event because its moment magnitude was recalculated to be at ~8.0.<ref name="Bourgeois">{{cite journal |last1=Bourgeois, Joanne & Pinegina, Tatiana K. |title=The 1997 Kronotsky earthquake and tsunami and their predecessors, Kamchatka, Russia |journal=Natural Hazards and Earth System Sciences |date=2018 |volume=18 |issue=1 |pages=335–350 |doi=10.5194/nhess-18-335-2018 |bibcode=2018NHESS..18..335B |url=https://www.researchgate.net/publication/317715418 |access-date=5 June 2021|doi-access=free }}</ref>

==See also==
* [[List of earthquakes in 1923]]
* [[Kamchatka earthquake]]

==References==
{{Reflist}}

==External links==
*{{EQ-isc-link|911271}}
{{Earthquakes in Russia}}
{{Earthquakes in the 1920s}}

[[Category:1923 earthquakes|Kamchatka Earthquake, 1923]]
[[Category:Earthquakes in Russia]]
[[Category:1920s tsunamis]]
[[Category:Doublet earthquakes]]
[[Category:Earthquakes in the Russian Far East]]


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