Difference between revisions of "1972 earthquake"
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*<span style="color:#ff0000">Need to have a map showing the 1951 earthquake sequences and the 1972 earthquake sequences, and the potential location of the 1972 surface rupture | *<span style="color:#ff0000">Need to have a map showing the 1951 earthquake sequences and the 1972 earthquake sequences, and the potential location of the 1972 surface rupture | ||
| − | Macroseismic map of this earthquake clearly shows the rupture fault was propagating northward, with unilateral rupture. This is coincide to the aftershock distribution from previous studies. | + | *Macroseismic map of this earthquake clearly shows the rupture fault was propagating northward, with unilateral rupture. This is coincide to the aftershock distribution from previous studies. |
| − | No surface rupture can be found in the field, based on the interview results and the aerial photo investigation | + | *No surface rupture can be found in the field, based on the interview results and the aerial photo investigation |
==Mainshock magnitude== | ==Mainshock magnitude== | ||
Latest revision as of 02:52, 6 October 2021
- Need to have a map showing the 1951 earthquake sequences and the 1972 earthquake sequences, and the potential location of the 1972 surface rupture
- Macroseismic map of this earthquake clearly shows the rupture fault was propagating northward, with unilateral rupture. This is coincide to the aftershock distribution from previous studies.
- No surface rupture can be found in the field, based on the interview results and the aerial photo investigation
Mainshock magnitude
- It is important to find out what is the magnitude of the mainshock. The magnitude from global catalog is listed below
| Source | 緯度(N) | 經度(E) | 深度(km) | 規模 | Type |
|---|---|---|---|---|---|
| NEIC | 23.6 | 121.60 | 33 | 7.2 | Ms |
| ISCGEM | 23.564 | 121.539 | 22.2 | 7.0 | Mw |
Aftershocks
Relocated mainshock and aftershocks From 蔣(1984)
| 地震編號 | 緯度(N) | 經度(E) | 深度(km) | 規模(mb) | 年 | 月 | 日 | 時 | 分 | 秒 |
|---|---|---|---|---|---|---|---|---|---|---|
| A | 23.59 | 121.54 | 29.3 | 6.1 | 72 | 4 | 24 | 17 | 57 | 22.06 |
| B | 23.48 | 121.39 | 39.7 | 5.2 | 72 | 4 | 24 | 19 | 32 | 12.65 |
| C | 23.52 | 121.4 | 52.5 | 5.1 | 72 | 4 | 24 | 20 | 0 | 34.81 |
| D | 23.62 | 121.49 | 32.7 | 4.8 | 72 | 4 | 24 | 20 | 22 | 43.58 |
| E | 23.57 | 121.41 | 8.6 | 72 | 4 | 24 | 20 | 45 | 41.19 | |
| F | 23.71 | 121.66 | 42.8 | 72 | 4 | 25 | 1 | 30 | 35.69 | |
| G | 23.78 | 121.58 | 26 | 5.4 | 72 | 4 | 25 | 1 | 58 | 31.91 |
| H | 23.88 | 121.5 | 42.7 | 4.7 | 72 | 4 | 25 | 3 | 30 | 29.68 |
| I | 23.92 | 121.36 | 11.6 | 72 | 4 | 25 | 3 | 44 | 5.12 | |
| J | 23.94 | 121.34 | 16.2 | 4.3 | 72 | 4 | 25 | 3 | 59 | 49.68 |
| K | 23.75 | 121.74 | 16.4 | 72 | 4 | 25 | 4 | 34 | 18.8 | |
| L | 23.58 | 121.61 | 48.4 | 4.7 | 72 | 4 | 25 | 7 | 27 | 57.24 |
| M | 23.85 | 121.31 | 28.5 | 4.6 | 72 | 4 | 27 | 7 | 48 | 28.18 |
| N | 23.8 | 121.56 | 27.1 | 72 | 4 | 27 | 22 | 26 | 28.38 | |
| O | 23.9 | 121.55 | 33.7 | 4.8 | 72 | 5 | 2 | 4 | 1 | 21.3 |
| P | 23.68 | 121.08 | 16.4 | 72 | 5 | 6 | 16 | 59 | 21.34 | |
| Q | 23.86 | 121.26 | 26.1 | 72 | 5 | 25 | 2 | 38 | 48.12 | |
| R | 23.61 | 121.7 | 3 | 4.5 | 72 | 8 | 1 | 1 | 4 | 44 |
| S | 23.9 | 121.6 | 36 | 5.5 | 72 | 11 | 8 | 22 | 25 | 46.5 |
| T | 23.95 | 121.28 | 22 | 5.9 | 72 | 11 | 10 | 2 | 41 | 14.5 |
| U | 23.87 | 121.66 | 27 | 5.5 | 72 | 11 | 21 | 10 | 47 | 16.4 |
From 詹(1985)
| 地震編號 | 緯度(N) | 經度(E) | 深度(km) | 規模(Mcw) | 年 | 月 | 日 | 時 | 分 | 秒 |
|---|---|---|---|---|---|---|---|---|---|---|
| A | 23.51 | 121.53 | 15.42 | 6.38 | 72 | 4 | 24 | 17 | 57 | 22.01 |
| B | 23.52 | 121.31 | 1.82 | 5.51 | 72 | 4 | 24 | 19 | 32 | 11.37 |
| C | 23.49 | 121.25 | 5.83 | 4.92 | 72 | 4 | 24 | 20 | 0 | 32.77 |
| D | 23.6 | 121.57 | 22.05 | 4.68 | 72 | 4 | 24 | 20 | 22 | 42.35 |
| E | 23.62 | 121.34 | 3.12 | 4.24 | 72 | 4 | 24 | 20 | 45 | 42.56 |
| F | 23.71 | 121.55 | 23.94 | 4.47 | 72 | 4 | 25 | 1 | 30 | 34.48 |
| G | 23.69 | 121.62 | 26.12 | 5.47 | 72 | 4 | 25 | 1 | 58 | 31.55 |
| H | 23.65 | 121.62 | 25.69 | 4.4 | 72 | 4 | 25 | 3 | 30 | 24.59 |
| I | 23.65 | 121.58 | 0.51 | 4.01 | 72 | 4 | 25 | 3 | 44 | 2.81 |
| J | 23.75 | 121.5 | 22 | 4.29 | 72 | 4 | 25 | 3 | 59 | 48.78 |
| K | 23.74 | 121.46 | 17.26 | 4.26 | 72 | 4 | 25 | 4 | 34 | 19.88 |
| L | 23.58 | 121.5 | 21.97 | 4.37 | 72 | 4 | 25 | 7 | 27 | 55.94 |
| M | 23.76 | 121.29 | 0.85 | 4.84 | 72 | 4 | 27 | 7 | 48 | 25.57 |
| N | 23.78 | 121.56 | 0.98 | 4.26 | 72 | 4 | 27 | 22 | 26 | 26.51 |
| O | 23.78 | 121.57 | 0.69 | 5.16 | 72 | 5 | 2 | 4 | 1 | 18.32 |
| P | 23.62 | 121.32 | 8.37 | 4.24 | 72 | 5 | 6 | 16 | 59 | 16.93 |
| Q | 23.76 | 121.37 | 9.96 | 4.25 | 72 | 5 | 25 | 2 | 38 | 46.12 |
from 中央氣象局 民國六十一年台灣地區的地震活動和蘇俄科學家預測發生大海嘯的可能性
| 地震編號 | 緯度(N) | 經度(E) | 深度(km) | 規模(M) | 年 | 月 | 日 | 時 | 分 |
| 1 | 22.5 | 122.3 | 55 | 6.7 | 1972 | 1 | 4 | 11 | 17 |
| 2 | 22.4 | 122.2 | 40 | 5.1 | 1972 | 1 | 4 | 20 | 15 |
| 3 | 20.9 | 120.2 | 90 | 6.5 | 1972 | 1 | 8 | 13 | 28 |
| 4 | 24.1 | 122 | 40 | 5 | 1972 | 1 | 14 | 21 | 34 |
| 5 | 22.5 | 122.3 | 70 | 7.3 | 1972 | 1 | 25 | 10 | 6 |
| 6 | 23 | 122.3 | 40 | 7.1 | 1972 | 1 | 25 | 11 | 41 |
| 7 | 24.4 | 120.3 | 15 | 5.3 | 1972 | 2 | 12 | 9 | 7 |
| 8 | 24.5 | 121.9 | 50 | 5.4 | 1972 | 2 | 21 | 17 | 42 |
| 9 | 22.4 | 122.1 | 35 | 5.6 | 1972 | 3 | 7 | 14 | 20 |
| 10 | 24.1 | 122.5 | 40 | 4.8 | 1972 | 3 | 19 | 21 | 33 |
| 11 | 23.9 | 121.9 | 50 | 6.3 | 1972 | 4 | 17 | 18 | 49 |
| 12 | 24.4 | 122.5 | 30 | 5.2 | 1972 | 4 | 17 | 19 | 2 |
| 13 | 23.8 | 122.4 | 25 | 5.6 | 1972 | 4 | 21 | 21 | 21 |
| 14 | 23.5 | 121.5 | 3 | 7 | 1972 | 4 | 24 | 17 | 57 |
| 15 | 23.5 | 121.3 | 5 | 5.1 | 1972 | 4 | 24 | 18 | 15 |
| 16 | 23.6 | 121.3 | 5 | 4.7 | 1972 | 4 | 24 | 19 | 19 |
| 17 | 23.6 | 121.4 | 5 | 5.6 | 1972 | 4 | 24 | 19 | 32 |
| 18 | 23.6 | 121.6 | 20 | 5.5 | 1972 | 4 | 24 | 20 | 0 |
| 19 | 23.6 | 121.9 | 10 | 5 | 1972 | 4 | 24 | 20 | 22 |
| 20 | 23.5 | 121.4 | 10 | 5 | 1972 | 4 | 25 | 1 | 30 |
| 21 | 23.8 | 121.6 | 7.5 | 5.7 | 1972 | 4 | 25 | 1 | 58 |
| 22 | 23.6 | 121.4 | 5 | 4.8 | 1972 | 4 | 25 | 3 | 59 |
| 23 | 23.8 | 121.3 | 5 | 5.1 | 1972 | 4 | 25 | 7 | 28 |
| 24 | 23.6 | 121.4 | 10 | 5.1 | 1972 | 4 | 27 | 7 | 48 |
| 25 | 23.9 | 122.2 | 30 | 5.2 | 1972 | 4 | 28 | 3 | 21 |
| 26 | 23.7 | 121.8 | 30 | 5.4 | 1972 | 5 | 2 | 4 | 1 |
| 27 | 23.1 | 121.2 | 10 | 5.5 | 1972 | 5 | 5 | 18 | 16 |
| 28 | 24.2 | 121.7 | 15 | 6 | 1972 | 5 | 12 | 9 | 21 |
| 29 | 23.7 | 121.5 | 30 | 5.2 | 1972 | 5 | 22 | 20 | 32 |
| 30 | 24.2 | 121.5 | 10 | 5.3 | 1972 | 7 | 1 | 2 | 57 |
| 31 | 23.6 | 121.3 | 15 | 4.8 | 1972 | 7 | 13 | 21 | 11 |
| 32 | 23.7 | 121.1 | 5 | 5.1 | 1972 | 7 | 16 | 21 | 48 |
| 33 | 23.5 | 121.9 | 25 | 5.2 | 1972 | 8 | 1 | 1 | 4 |
| 34 | 23.5 | 121.8 | 15 | 4.9 | 1972 | 8 | 31 | 9 | 13 |
| 35 | 24.6 | 122.7 | 40 | 5.3 | 1972 | 9 | 2 | 10 | 8 |
| 36 | 22.5 | 120.9 | 15 | 6.5 | 1972 | 9 | 23 | 3 | 57 |
| 37 | 22 | 121.4 | 45 | 6.6 | 1972 | 9 | 23 | 10 | 14 |
| 38 | 22.7 | 121.4 | 30 | 5.3 | 1972 | 9 | 24 | 14 | 44 |
| 39 | 22.6 | 121.3 | 20 | 5.2 | 1972 | 9 | 24 | 21 | 9 |
| 40 | 22.2 | 121.2 | 30 | 5.9 | 1972 | 9 | 28 | 1 | 54 |
| 41 | 24.3 | 121.8 | 20 | 5 | 1972 | 9 | 29 | 12 | 28 |
| 42 | 22.3 | 121.4 | 25 | 5.3 | 1972 | 10 | 6 | 23 | 52 |
| 43 | 22.3 | 121.1 | 20 | 5.4 | 1972 | 10 | 21 | 12 | 16 |
| 44 | 22.8 | 120.8 | 20 | 5.3 | 1972 | 11 | 7 | 14 | 40 |
| 45 | 23.9 | 121.5 | 2 | 5.7 | 1972 | 11 | 8 | 22 | 25 |
| 46 | 23.9 | 121.3 | 10 | 6.5 | 1972 | 11 | 10 | 2 | 41 |
| 47 | 23.9 | 121.8 | 20 | 6 | 1972 | 11 | 21 | 10 | 47 |
| 48 | 23.9 | 121.4 | 5 | 5.5 | 1972 | 11 | 21 | 10 | 51 |
| 49 | 23.2 | 120.4 | 10 | 5.4 | 1972 | 12 | 22 | 9 | 35 |
| 50 | 23.4 | 121.6 | 35 | 4.8 | 1972 | 12 | 30 | 5 | 3 |
Ground deformations
- Mostly associated to the landslides and the slope failures.
- A more-than-2-km-long fissure is interesting.
- No clear evidence of surface rupture at the base of the coastal range.
