2009 Tonga earthquake

The 2009 Tonga earthquake was a 7.6 magnitude earthquake that occurred off the coast of Tonga on March 19, 2009 UTC. It occurred at 18:17:41 UTC and had a depth of around . A tsunami warning was issued in the aftermath of the earthquake, although this was later cancelled. It was followed a short while later by an aftershock earthquake that had a magnitude of 5.3. Two more aftershocks followed on March 20 (UTC), with magnitudes of 5.4 and 5.0 M_w, then another magnitude 5.0 aftershock on March 21, totalling four aftershocks above magnitude 5. The quake occurred approximately to the southeast of Nuku'alofa, the capital of Tonga, and initial reports suggest that there have been no injuries or significant damage. The earthquake was felt as far away as New Zealand's North Island, over away.

The earthquake occurred four days after the beginning of a major undersea volcanic eruption near to Hunga Tonga. As of yet there has been no confirmation of a direct link between the volcanic eruption and earthquake, but Ken Hudnut, a geophysicist for the United States Geological Survey, stated that "it seems suggestive at this point". Keleti Mafi, the Tongan government's chief seismologist, has suggested that the earthquake is likely to have a direct impact on the volcanic eruption, stating that the "strength of the earthquake could crack the volcano's (undersea) vent and allow more magma to be ejected".

See also

• 2009 Tonga undersea volcanic eruption
• Hunga Tonga
• 2006 Tonga earthquake
• 2007 Tonga earthquake

External links

• Tonga Meterological Service
• Images at the Discovery Channel

bg:Земетресение в Тонга (2009) es:Terremoto de Tonga de 2009 ja:トンガ地震 (2009年) hu:2009-es tongai földrengés ru:Землетрясение в Тонга (2009)