Under land 87 miles from Anchorage in The United States, a shallow M4.5 earthquake occurred just after midnight of Wednesday November 13th, 2024. The USGS has indicated there is a potential risk at tsunami's following this earthquake.
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Earthquake Summary
The earthquake struck on land in The United States, 87 miles (140 km) east-southeast of Anchorage in Alaska. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Nov 13, 2024 12:07AM (Anchorage Time) - Nov 13, 2024 09:07 Universal Time. |
|---|---|
| Location: | 87 mi ESE of Anchorage, Alaska, The United States. Coordinates 60°56'41"N 147°21'38"W. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 4.5 Detected by 29 stations. Maximum Error Range ±0.03 . |
| Depth: | 10 mi (16 km) A very shallow depth. |
| Max. Intensity: | IV
Light On the Modified Mercalli Scale. |
| Tsunami Risk: | Potential tsunami risk The USGS has indicated there is a potential risk at tsunami's following this earthquake. Always stay cautious - More info here. |
Potential tsunami risk
There is a potential tsunami risk in the aftermath of this earthquake, immediately evacuate to higher grounds away from coastal areas and monitor advice from local authorities. The US Geographic Survey organization has indicated a potential risk for tsunami's following this earthquake.
Tsunami Risk Factors
| Factor | Under Sea? | MAG-6.5 or stronger? | Shallow depth? |
|---|---|---|---|
| Explanation | Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. | Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's. |
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor. |
| This Earthquake | This earthquake appears to have struck on land near a coastal area (1 mi from the sea). | Not this earthquake. This earthquake had a magnitude of 4.5. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 10 mi (16 km). Earthquakes this shallow could trigger a tsunami. |
Nearby towns and cities
This earthquake may have been felt in The United States . Located 78 miles (126 km) east-southeast of the epicenter of this earthquake, Eagle River (Alaska, The United States) is the nearest significant population center. The intensity of shaking and damage in Eagle River is estimated to be around level II on the Modified Mercalli Intensity scale (very weak shaking, no damage).
Overview of nearby places
| Distance | Place | Intensity (MMI) |
|---|---|---|
| 78 mi (126 km) WNW from epicenter |
Eagle River Alaska, The United States. |
II
Weak |
| 87 mi (140 km) WNW from epicenter |
Anchorage Alaska, The United States. |
II
Weak |
Earthquake Intensity Map
The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is IV.
3 Aftershocks detected
Since this main shock, 3 smaller aftershocks were detected. Just 23 hrs after this main shock, an earthquake measuring MAG-2.9 was detected 1.3 mi (2.1 km) south-southwest of this earthquake.
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Main Shock This Earthquake |
M 4.5 |
Nov 13, 2024 12:07AM (Anchorage Time) | - |
| Aftershock | M 2.9 |
23 hrs later Nov 13, 2024 10:58PM (Anchorage Time) | 1.3 mi (2.1 km) SSW from Main Shock. |
| Aftershock | M 2.5 |
1 day later Nov 14, 2024 11:17AM (Anchorage Time) | 23 mi (38 km) SSW from Main Shock. |
| Aftershock | M 2.5 |
2 days later Nov 14, 2024 06:52PM (Anchorage Time) | 33 mi (53 km) N from Main Shock. |
More earthquakes coming?
Aftershocks are usually at least 1 order of magnitude less strong than main shocks. The more time passes, the smaller the chance and likely strength of any potential aftershocks.
In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major earthquake.
Read: How to Stay Safe during an Earthquake (cdc.gov).Earthquakes like this happen often in the region
Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since October 11th, 2024, when a 4.6 magnitude earthquake hit 136 mi (219 km) further north-northwest. An even stronger magnitude 7.1 earthquake struck on November 30th, 2018.
In total, 88 earthquakes with a magnitude of 4.5 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every month.
Sources
Last updated 21/12/24 14:28 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.
- US Geographic Society (USGS): Earthquake ak024em2arnr
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20241113_0000091
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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