When was the last large earthquake in Alaska?
| Mag | Earthquake Information | Depth |
|---|---|---|
| 1.8 | February 05, 01:57 PM 46 mi W of Burwash Landing | 6 miles |
| 1.6 | February 05, 01:42 PM 9 mi NW of Anchorage | 21 miles |
| 2.4 | February 05, 01:21 PM 13 mi E of Nabesna | 0 miles |
| 1.6 | February 05, 11:23 AM 11 mi SW of Healy | 37 miles |
How long did the 7.1 Alaska earthquake last?
It was followed six minutes later by a magnitude 5.7 aftershock centered 2.5 miles (4.0 km) north-northwest of the municipality. The earthquake could be felt as far away as Fairbanks….2018 Anchorage earthquake.
| Damage to the Glenn Highway | |
|---|---|
| Local date | November 30, 2018 |
| Local time | 08:29:28 AKST |
| Magnitude | 7.1 Mww |
| Depth | 46.7 km (29.0 mi) |
What was the largest earthquake in Alaska?
On March 27, 1964 at 5:36pm local time, a M9. 2 earthquake rocked the Prince William Sound region of Alaska. This earthquake and ensuing tsunami took 131 lives (tsunami 122, earthquake 9), and caused about $2.3 billion in property loss (in 2013 dollars; equivalent to $311 million in 1964).
When did Alaska have a 9.2 earthquake?
March 27, 1964
On March 27, 1964 at 5:36pm local time (March 28 at 3:36 UTC) an earthquake of magnitude 9.2 occurred in the Prince William Sound region of Alaska.
How long did the Prince William Sound earthquake last?
approximately 4 minutes
The duration of rupture lasted approximately 4 minutes (240 seconds). The aftershock zone of this earthquake was about 250 km wide and extended about 800 km from Prince William Sound to the southwestern end of Kodiak Island.
How many detectable earthquakes are there each year?
500,000 detectable earthquakes
It is estimated that there are 500,000 detectable earthquakes in the world each year. 100,000 of those can be felt, and 100 of them cause damage.