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Table 2
Values of different metrics used to assess epicentre location accuracy, before and after 2002.
Valeurs des différentes métriques utilisées pour évaluer la précision de la localisation des épicentres, avant et après 2002.
| 5th percentile | 50th percentile | 95th percentile | ||||
|---|---|---|---|---|---|---|
| Period | Before 2002 | After 2002 | Before 2002 | After 2002 | Before 2002 | After 2002 |
| Number of stations | 3 | 6 | 6 | 13 | 22 | 47 |
| Number of phases | 5 | 11 | 10 | 25 | 44 | 98 |
| Number of P phases | 2 | 4 | 5 | 12 | 26 | 52 |
| Number of S phases | 3 | 6 | 5 | 13 | 18 | 43 |
| Distance to closest station (km) | 14.5 | 9.7 | 19.0 | 39.1 | 85.0 | 54.4 |
| Locgse 68% error ellipse semi major axis (km) | 0.5 | 0.8 | 3.6 | 1.4 | 15.3 | 2.8 |
| Iloc 68% error ellipse semi major axis (km) | 4.1 | 1.9 | 7.9 | 3.5 | 16.9 | 6.4 |
| Primary gap (°) | 95 | 44 | 168 | 104 | 286 | 171 |
| Secondary gap (°) | 146 | 56 | 212 | 146 | 340 | 246 |
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