M 4.7 - 51 km SE of Port Graham, Alaska
- 2023-02-24 22:00:44 (UTC)
- 59.028°N 151.193°W
- 41.7 km depth
ShakeMap
- The data below are the most preferred data available
- The data below have NOT been reviewed by a scientist.
Processing
| Type | Module | Reference |
|---|---|---|
| GMPE | gmpe_ak0232jbnptv_custom | |
| IPE | VirtualIPE | |
| GMICE | WGRW12 | |
| CCF | LothBaker2013 | |
| Basin | None | |
| Directivity | None |
- Max magnitude to compute bias
- 7.0
- Maximum distance to include station in bias
- 120.0
- Use log amp to compute bias
- -
- Max allowed bias
- -
- Use log amp to compute bias
- -
- Min # of stations necessary to compute bias
- -
- Norm of the bias
- -
- Median distance used
- True
- Outlier level (# of std dev)
- 3.0
- Max magnitude to flag outliers
- 7.0
- Code
- 4.0.2+442.g4808b2c.dirty
- Github commit
- 4808b2c51b72874ee70a5cc986aaa0434c173b53
- Map version
- 2
- Date
- 2023-02-24 22:23:29 (UTC)
| Map Version | Network | Processing Time | Comment |
|---|---|---|---|
| 1 | ak | 2023-02-24 22:06:47 (UTC) | automatic run |
| 2 | ak | 2023-02-24 22:22:50 (UTC) | automatic run |
- Reference rock Vs30
- 760.0
- Site correction applied
- GMPE native
Output
| Type | Max Value in Grid | Max Value on Land | Bias |
|---|---|---|---|
| PGV | -0.481 cms | -0.709 cms | 0.343 |
| PGA | 0.015 g | 0.012 g | 0.432 |
| SA(3.0 s) | 0 g | 0 g | - |
| SA(1.0 s) | 0.004 g | 0.003 g | - |
| SA(0.3 s) | 0.02 g | 0.016 g | - |
| Intensity | 3.174 intensity | 3.11 intensity | 0.022 |
| Type | Latitude | Longitude |
|---|---|---|
| Number of points | 435 | 835 |
| Grid spacing | 0.0083333 degrees | 0.0083333 degrees |
| Span | 3.617 degrees | 6.95 degrees |
| Min | 57.167 degrees | -154.467 degrees |
| Max | 60.783 degrees | -147.517 degrees |
- Mean of map uncertainty
- -
- Empirical ShakeMap grade
- --
- Flagged Seismic Stations
- 0
- Flagged DYFI stations
- 3
Input
- Description
- 51 km (32 miles) SE of Port Graham
- ID
- ak0232jbnptv
- Magnitude
- 4.63
- Depth
- 38.0 km
- GPS location
- 59.029°N 151.187°W
- Origin time
- 2023-02-24 22:00:44 (UTC)
- Mechanism
- -
- Mechanism source
- NM
- Location
- 51 km (32 miles) SE of Port Graham
- Fault files
- -
- Fault reference
- Origin
- Number of seismic stations
- 64
- Number of DYFI stations
- 0
Ground Motion Models
| Name | Weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.85 | ||||||||||
| 0.15 |
| Name | Weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.85 | ||||||||||
| 0.15 |
| Name | Weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.85 | ||||||||||
| 0.15 |
| Name | Weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.85 | ||||||||||
| 0.15 |
| Name | Weight | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.85 | ||||||||||
| 0.15 |