M 6.5 - 18 km SE of Market Shop, Saint Kitts and Nevis
- 1985-03-16 14:54:00 (UTC)
- 17.013°N 62.448°W
- 13.4 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 |
|---|---|---|
| Basin | None | None |
| Directivity | None | None |
| GMPE | CY08 | Chiou and Youngs (2008, 2009) |
| IPE | DefaultIPE | ShakeMap Manual (2015) |
| mi2pgm | WGRW11 | Worden et al. (2012) |
| pgm2mi | WGRW11 | Worden et al. (2012) |
- Max magnitude to compute bias
- 7
- Maximum distance to include station in bias
- 120
- Use log amp to compute bias
- yes
- Max allowed bias
- 2
- Use log amp to compute bias
- -2
- Min # of stations necessary to compute bias
- 6
- Norm of the bias
- l1
- Median distance used
- yes
- Outlier level (# of std dev)
- 3
- Max magnitude to flag outliers
- 7
- Code
- 3.5.1586
- Github commit
- -
- Map version
- 1
- Date
- 2017-03-28 23:59:02 (UTC)
- Reference rock Vs30
- 686
- Site correction applied
- GMPE native
| Type | ROI | Observation Decay |
|---|---|---|
| 10 | 0.5 | |
| 10 | 0.5 |
Output
| Type | Max Value in Grid | Max Value on Land | Bias |
|---|---|---|---|
| Intensity | 6.31 intensity | 5.65 intensity | 0 |
| PGA | 19.08 %g | 11.78 %g | 0 |
| PGV | 14.68 cm/s | 9.33 cm/s | 0 |
| SA(0.3 s) | 38.93 %g | 23.9 %g | 0 |
| SA(1.0 s) | 14.09 %g | 9.24 %g | 0 |
| SA(3.0 s) | 3 %g | 2.09 %g | 0 |
| Type | Latitude | Longitude |
|---|---|---|
| Number of points | 154 count | 161 count |
| Grid spacing | 2.767 km | 2.662 km |
| Span | 3.824 degrees | 4 degrees |
| Max | 18.894 degrees | -60.446 degrees |
| Min | 15.07 degrees | -64.446 degrees |
- Mean of map uncertainty
- -
- Empirical ShakeMap grade
- -
- Flagged Seismic Stations
- -
- Flagged DYFI stations
- -
Input
- Description
- 24 km SE of Charlestown, Saint Kitts and Nevis
- ID
- 19850316145402
- Magnitude
- 6.4
- Depth
- 15.8 km
- GPS location
- 16.982°N 62.446°W
- Origin time
- 1985-03-16 14:54:02 (UTC)
- Mechanism
- composite
- Mechanism source
- SS
- Location
- 24 km SE of Charlestown, Saint Kitts and Nevis
- Fault files
- -
- Fault reference
- -
- Number of seismic stations
- -
- Number of DYFI stations
- -