M 4.3 earthquake – Rat Islands, Aleutian Islands, Alaska
·
Local time: Dec 18, 2003 · 03:59 (UTC+12)
LightShallow · 33 km
Reviewed by a seismologist
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- Magnitude
- 4.3body-wave magnitude (mb)
- Depth
- 33 kmShallow earthquake
- Epicenter
- 50.139, 178.4451,403 km from Petropavlovsk-Kamchatsky
- Energy released
- 43 tons of TNTless than one Hiroshima bomb
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- —not estimated
- Aftershocks
- 12M2.5+ within 30 km, up to 60 days
- Significance
- 284USGS score, 0–1,000+
Not rare around here
An earthquake at least as strong struck within 300 km on Dec 9, 2003.
How strong was it?
Light earthquake. It released 43 tons of TNT, 11 times less than a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
12 earthquakes of M2.5+ within 30 km in the 60 days after.
- 4.3 Rat Islands, Aleutian Islands, Alaska Dec 17, 2003
- 3.7 Rat Islands, Aleutian Islands, Alaska Dec 17, 2003
- 3.9 Rat Islands, Aleutian Islands, Alaska Dec 17, 2003
- 4.7 Rat Islands, Aleutian Islands, Alaska Dec 19, 2003
- 3.4 Rat Islands, Aleutian Islands, Alaska Dec 20, 2003
- 3.4 Rat Islands, Aleutian Islands, Alaska Dec 20, 2003
- 3.5 Rat Islands, Aleutian Islands, Alaska Dec 22, 2003
- 3.1 Rat Islands, Aleutian Islands, Alaska Dec 22, 2003
- 3.4 Rat Islands, Aleutian Islands, Alaska Jan 9, 2004
- 3.2 Rat Islands, Aleutian Islands, Alaska Jan 10, 2004
The strongest earthquakes within 300 km
Since 1900, around United States.
- 8.7 1965 Western Aleutian Islands (Hawadax/Rat Islands) Earthquake Feb 4, 1965
- 8.3 1906 Western Aleutian Islands (Hawadax/Rat Islands) Earthquake Aug 17, 1906
- 7.9 Rat Islands, Aleutian Islands, Alaska Jun 23, 2014
- 7.8 Rat Islands, Aleutian Islands, Alaska Nov 17, 2003
- 7.6 Rat Islands, Aleutian Islands, Alaska Mar 30, 1965
- 7.4 265 km WSW of Adak, Alaska Feb 4, 1965
- 7.2 238 km SSE of Attu Station, Alaska Sep 8, 1939
- 7.2 207 km WSW of Adak, Alaska Dec 19, 2007