2000 Iceland earthquakes
  | |
| UTC time | Doublet earthquake: |
|---|---|
| A: 2000-06-17 15:40:41 | |
| B: 2000-06-21 00:51:46 | |
| ISC event | |
| A: 1736604 | |
| B: 1736730 | |
| USGS-ANSS | |
| A: ComCat | |
| B: ComCat | |
| Local date | 17 June 2000 21 June 2000 |
| Magnitude | |
| A: 6.5 Mwc[1] | |
| B: 6.5 Mwc[2] | |
| Depth | 6.3 kilometres (3.9 mi) (17 June) 5.1 kilometres (3.2 mi) (21 June) |
| Epicenter | 63°58′N 20°22′W / 63.97°N 20.37°W 63°59′N 20°43′W / 63.98°N 20.71°W |
| Max. intensity | 17 June: MMI VIII (Severe) 21 June: MMI IX (Violent) |
| Casualties | 3 injured |
The 2000 Iceland earthquakes struck southern Iceland on 17 and 21 June. There were no fatalities but three people suffered minor injuries and there was considerable damage to infrastructure.[3] The two earthquakes were the first major seismic activity in Iceland for 88 years.[4] The recorded magnitude of both of the main quakes was 6.5 Mwc.[1][2]
Tectonic setting
Iceland lies on the spreading axis of the
According to historical records, there have been 33 damaging earthquakes in the SISZ from the 11th century up to June 2000, with the latest being in 1896 and 1912.[5]
Earthquakes
The first of the earthquakes occurred at 15:40 UTC on 17 June at a depth of 6.3 km. The magnitude estimated by the Icelandic Meteorological Office was 6.4 Mw , assuming a single fault, although such a model did not fit all the available data. The extent of aftershocks defined a 16 km long north-south fault rupture, continuing down to 10 km. The causative fault was the Árnes Fault and a large number of surface fissures were mapped along this structure in the days following the event.[5]
The second earthquake occurred at 00:51 UTC on 21 June at a depth of 5.1 km. The extent of aftershocks defined an 18 km fault rupture down to 8 km depth. The causative fault was the Hestfjall Fault. Surface fissures were developed over a distance of about 25 km.[5]
See also
References
- ^ a b "M 6.5 Iceland 2000-06-17". earthquake.usgs.gov. United States Geological Survey. Retrieved 27 April 2019.
- ^ a b "M 6.5 Iceland 2000-06-21". earthquake.usgs.gov. United States Geological Survey. Retrieved 27 April 2019.
- ^ South Iceland Earthquakes 2000: Damage and Strong-Motion Recordings
- ^ Ragnar Stefánsson; Gunnar B. Guðmundsson. "The two large earthquakes in the South Iceland seismic zone on June 17 and 21, 2000". Archived from the original on 25 July 2001. Retrieved 25 July 2001.
- ^ .
External links
- The International Seismological Centre has a bibliography and/or authoritative data for this event.