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2004 Al Hoceima earthquake

{{Short description|Earthquake near the northern Moroccan coast}}

{{Infobox earthquake

| title = 2004 Al Hoceima earthquake

| timestamp = 2004-02-24 02:27:47

| anss-url = usp000cmxe

| isc-event = 7254476

| image = 2004 03 Maroc - Séisme Al Hoceima.jpg

| imagecaption =

| local-date = {{Start date|2004|2|24|df=y}}

| local-time = 02:27:47

| map2 = {{Location map+ | Morocco

|places=

{{Location map~|Morocco|lat=30.43|long=-9.6|label=Agadir|label_size=120|position=left|mark=Green pog.svg}}

{{Location map~|Morocco|lat=35.77|long=-5.8|label=Tangier|label_size=120|position=left|mark=Green pog.svg}}

{{Location map~|Morocco|lat=35.23|long=-4.04|mark=Bullseye1.png|marksize=40}}

|relief = yes

|label =

|lat = 35.25

|long = -3.933

|mark = Bullseye1.png

|marksize = 40

|position = top

|width= 250

|float = right

|caption = }}

| magnitude = 6.3 Mw

| intensity = {{MMI|IX}}

| pga = 0.24 g

| depth = {{convert|12.2|km|mi|abbr=on}}

| location = {{coord|35.23|-4.02|display=inline, title}}

| type = Strike-slip

| countries affected = Morocco

| casualties = 628–631 dead
926 injured
12,539–15,000 displaced

}}

The 2004 Al Hoceima earthquake occurred on 24 February at 02:27:47 local time near the coast of northern Morocco. The strike-slip earthquake measured 6.3 on the moment magnitude scale and had a maximum perceived intensity of IX (Violent) on the Mercalli intensity scale. Between 628 and 631 people were killed, 926 injured, and up to 15,000 people were rendered homeless in the Al Hoceima-Imzourene-Beni Abdallah area.

Earthquake

{{More citations needed section|date=April 2022}}

The moment tensor and pattern of surface cracks indicate left-lateral strike-slip faulting on a buried NE-SW trending fault.

This earthquake occurred near the epicenter of the magnitude 6.0 Al Hoceima earthquake of May 26, 1994, that had injured one person and caused significant damage to buildings.{{cite news|title=Over 500 killed in Morocco quake|url=http://articles.cnn.com/2004-02-24/world/morocco.quake_1_al-hoceima-ait-kamara-powerful-earthquake?_s=PM:WORLD|first=Al|last=Goodman|date=February 25, 2004|publisher=CNN|access-date=October 28, 2013|archive-url=https://web.archive.org/web/20120713052039/http://articles.cnn.com/2004-02-24/world/morocco.quake_1_al-hoceima-ait-kamara-powerful-earthquake?_s=PM:WORLD|archive-date=July 13, 2012|url-status=dead}}

= Damage =

Ground cracks and landslides were observed between Ajdir and Beni Abdallah and maximum peak ground acceleration of 0.24g was recorded near Imzourene. Many fatalities occurred in Al Hoceima, a coastal city along the Mediterranean Sea. Mohammed Boudra, the mayor of Al Hoceima, said most of the casualties were women and children. Further inland, many more residents of scattered villages within the Rif Mountains died. The mud houses of Tazaghin, Tizi Ayash and Imzourn, villages on the mountain, were damaged. The village of Ait Kamara was also "completely destroyed".

= Aftershocks =

Several aftershocks killed at least three people and destroyed previously weakened buildings. This earthquake occurred near the eastern end of the Rif mountain belt, which is part of the diffuse boundary between the African and Eurasian plates.

See also

References

{{Reflist|refs=

{{citation|title=ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009)|url=http://www.isc.ac.uk/iscgem/index.php|author=ISC|year=2015|publisher=International Seismological Centre|series=Version 2.0}}

{{citation|title=PAGER-CAT Earthquake Catalog|url=https://earthquake.usgs.gov/static/lfs/data/pager/catalogs/|archive-url=https://web.archive.org/web/20200313112456/ftp://hazards.cr.usgs.gov/web/data/pager/catalogs/|url-status=dead|archive-date=2020-03-13|date=September 4, 2009|publisher=United States Geological Survey|series=Version 2008_06.1}}

{{cite web|title=M6.4 – Strait of Gibraltar|url=https://earthquake.usgs.gov/earthquakes/eventpage/usp000cmxe#general_summary|publisher=United States Geological Survey}}

}}

Further reading

  • {{citation|title=The 1994–2004 Al Hoceima (Morocco) earthquake sequence: Conjugate fault ruptures deduced from InSAR|url=http://web.itu.edu.tr/~cakirz/papers/akoglu_etal_EPSL_2006.pdf|first=A. M.|last=Akoglu|first2=Z.|last2=Cakir|first3=M.|last3=Meghraoui|first4=S.|last4=Belabbes|first5=S. O.|last5=El Alami|first6=S.|last6=Ergintav|first7=H. Serdar|last7=Akyüz|year=2006|journal=Earth and Planetary Science Letters|volume=252|issue=3–4|pages=467–480|doi=10.1016/j.epsl.2006.10.010|bibcode=2006E&PSL.252..467A}}
  • {{citation|title=Surface Deformation Associated with the Mw 6.4, 24 February 2004 Al Hoceima, Morocco, Earthquake Deduced from InSAR: Implications for the Active Tectonics along North Africa|url=http://bssaonline.org/content/96/1/59.abstract|first=Z.|last=Cakir|first2=M.|last2=Meghraoui|first3=A. M.|last3=Akoglu|first4=N.|last4=Jabour|first5=S.|last5=Belabbes|first6=L.|last6=Ait-Brahim|year=2006|journal=Bulletin of the Seismological Society of America|volume=96|number=1|pages=59–68|doi=10.1785/0120050108|bibcode=2006BuSSA..96...59C|url-access=subscription}}
  • {{citation|title=Source analysis of the Mw 6.3 2004 Al Hoceima earthquake (Morocco) using regional apparent source time functions|url=http://www.ugr.es/~florlis/publicaciones/alhuceimas.pdf|first=D.|last=Stich|first2=F.|last2=de Lis Mancilla|first3=D.|last3=Baumont|first4=J.|last4=Morales|year=2005|journal=Journal of Geophysical Research|volume=110|number=B06306|pages=1–13|doi=10.1029/2004jb003366|bibcode=2005JGRB..110.6306S|access-date=2013-10-28|archive-url=https://web.archive.org/web/20131029201639/http://www.ugr.es/~florlis/publicaciones/alhuceimas.pdf|archive-date=2013-10-29|url-status=dead|doi-access=free}}
  • {{citation|title=Time-clustering behavior in the sequence of the aftershocks of the Al-Hoceima (Morocco) 24 February 2004 earthquake|first=L.|last=Telesca|first2=M.|last2=Rouai|first3=T. E.|last3=Cherkaoui|year=2009|journal=Natural Hazards and Earth System Sciences|volume=9|issue=6|pages=2063–2066|doi=10.5194/nhess-9-2063-2009|doi-access=free}}

External links

  • [ftp://hazards.cr.usgs.gov/maps/sigeqs/20040224/20040224.pdf M6.4 Al Hoceima, Morocco Earthquake of 24 February 2004]{{dead link|date=May 2025|bot=medic}}{{cbignore|bot=medic}} – USGS
  • [https://web.archive.org/web/20160303233315/http://earth.esa.int/fringe2005/proceedings/presentations/257_biggs.pdf Buried Strike Slip Faults: The 1994 and 2004 Al Hoceima, Morocco Earthquakes]
  • [https://web.archive.org/web/20131029194357/http://www.iris.edu/workshops/2013/assets/pdf/network_reports/el_fellah.pdf Moroccan Seismic Network: Overview] – IRIS Consortium
  • [https://www.yumpu.com/en/document/view/33612471/the-seismic-design-code-for-buildings-a-priority-for-seismic-risk- The seismic design code for buildings: A priority for seismic risk reduction in Morocco]
  • [https://www.eeri.org/lfe/pdf/morocco_alhoceima_eeri_preliminary_report.pdf Preliminary Observations on the Al Hoceima, Morocco, Earthquake of February 24, 2004] – EERI
  • [http://www.emsc-csem.org/Files/news/Earthquakes_reports/Alhucemas_040224_eng.pdf Al-Hoceima earthquake 24 02 2004] – Patrick Murphy Corella
  • [http://www.emsc-csem.org/Earthquake/87/Mw-6-5-Al-Hoceima-Morocco-24-02-2004 Earthquake Mw 6.5 in Morocco, February 24th, 2004] – EMSC
  • {{EQ-isc-link|7254476}}
  • {{ReliefWeb-link|2004-0073}}

{{Earthquakes in 2004}}

{{Earthquakes in Africa}}

Category:2004 disasters in Morocco

Al Hoceima

Earthquake

Category:Earthquakes in Morocco

Category:February 2004 in Africa

Category:Al Hoceïma Province

Category:Taounate Province

Category:Taza Province