In the early morning of Tuesday April 23rd, 2024, a shallow and significant MAG-5.4 aftershock hit in the Philippine Sea 31 kilometer from Hualien City, Taiwan. Shaking may have been felt by a total of 24 million people. Japan is also near its epicenter.
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Earthquake Summary
This earthquake hit under water in the Philippine Sea, right off the coast of Taiwan (3 mi offshore), 31 kilometer south of Hualien City in Hualien County. The center of this earthquake had a very shallow depth of 5 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
Date and Time: | Apr 23, 2024 05:04 (Taipei Time) - Apr 22, 2024 21:04 Universal Time. |
---|---|
Location: | 31 km south of Hualien City, Hualien County, Taiwan. Coordinates 23°41'53"N 121°34'26"E. |
Map: | Map of area around epicenter. Click to open in Google Maps. |
Magnitude: | MAG 5.4 Detected by 19 stations. Maximum Error Range ±0.071 . |
Depth: | 5 km (3 mi) A very shallow depth. |
Max. Intensity: | VII
Very Strong On the Modified Mercalli Scale. |
Tsunami Risk: | Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here. |
Minimal impact predicted
Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.
The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.
Roughly 24 million people exposed to shaking
This earthquake may have been felt by around 24 million people. That is the expected population size of the area exposed to a level of shaking of II or higher on the Modified Mercalli scale according to the USGS.
The highest earthquake impact level for this earthquake is VII, which corresponds with very strong shaking and likely moderate damage. Roughly 280 people are expected to be exposed to this level. Intensity level III was experienced by the majority of people (around 23 million). In their region, weak shaking and probably no damage can be expected.
People in 3 countries have been exposed to shaking. In Taiwan , around 24 million people, with impact levels up to VII (very strong shaking, likely moderate damage). In China and Japan, a smaller number of people were exposed.
People | MMI Level | Shaking | Damage |
---|---|---|---|
0 | I |
Not noticable | None |
99,300 | II |
Very weak | None |
22,890,000 | III |
Weak | Probably none |
541,700 | IV |
Light | Likely none |
48,720 | V |
Moderate | Very light |
12,880 | VI |
Strong | Light |
280 | VII |
Very Strong | Moderate |
0 | VIII |
Severe | Moderate to heavy |
0 | IX |
Violent | Heavy |
0 | X |
Extreme | Very heavy |
Nearby towns and cities
This earthquake struck within proximity of multiple countries. Taiwan and Japan are both within 300km distance of its epicenter.
Hualien City in Hualien County, Taiwan is the nearest significant place from the epicenter. The earthquake occurred 31 kilometer (19 mi) south of Hualien City. The intensity of shaking and damage in Hualien City is estimated to be around level IV on the Modified Mercalli Intensity scale (light shaking, likely no damage).
Multiple major population centers exist within 300km of the earthquake that struck today. Taipei is located 150 km to the north and experienced an intensity of III (weak shaking, probably no damage). Hualien City is located 31 km to the north and experienced an intensity of IV (light shaking, likely no damage). Taichung is located 103 km to the west-northwest and experienced an intensity of III (weak shaking, probably no damage).
A complete list of nearby places is included below. Estimated intensity data (MMI) sourced from a shake-map published by the US Geographic Survey is shown where available (cities without data probably experienced little impact).
Overview of nearby places
Distance | Place | Intensity (MMI) |
---|---|---|
31 km (19 mi) N from epicenter |
Hualien City Hualien County, Taiwan. |
IV
Light |
68 km (42 mi) WNW from epicenter |
Puli Nantou County, Taiwan. |
IV
Light |
84 km (52 mi) W from epicenter |
Lugu Nantou County, Taiwan. |
III
Weak |
95 km (59 mi) WNW from epicenter |
Zhongxing New Village Nantou County, Taiwan. |
III
Weak |
96 km (60 mi) WNW from epicenter |
Nantou Nantou County, Taiwan. |
III
Weak |
103 km (64 mi) WNW from epicenter |
Taichung Taichung City, Taiwan. |
III
Weak |
105 km (65 mi) W from epicenter |
Douliu Yunlin County, Taiwan. |
IV
Light |
106 km (66 mi) WNW from epicenter |
Yuanlin Changhua County, Taiwan. |
IV
Light |
119 km (74 mi) N from epicenter |
Yilan Yilan County, Taiwan. |
IV
Light |
130 km (81 mi) WSW from epicenter |
Yujing Tainan City, Taiwan. |
III
Weak |
135 km (84 mi) NNW from epicenter |
Daxi Taoyuan City , Taiwan. |
III
Weak |
137 km (85 mi) NNW from epicenter |
Hsinchu Hsinchu County, Taiwan. |
III
Weak |
147 km (91 mi) N from epicenter |
Banqiao New Taipei City, Taiwan. |
III
Weak |
147 km (91 mi) NNW from epicenter |
Taoyuan City Taoyuan City , Taiwan. |
III
Weak |
150 km (93 mi) N from epicenter |
Taipei Taipei City, Taiwan. |
III
Weak |
160 km (99 mi) N from epicenter |
Keelung Keelung, Taiwan. |
III
Weak |
160 km (99 mi) WSW from epicenter |
Tainan Tainan City, Taiwan. |
III
Weak |
176 km (109 mi) SW from epicenter |
Kaohsiung Kaohsiung, Taiwan. |
III
Weak |
179 km (111 mi) SW from epicenter |
Donggang Pingtung County, Taiwan. |
III
Weak |
203 km (126 mi) W from epicenter |
Magong Penghu County , Taiwan. |
|
207 km (129 mi) SSW from epicenter |
Hengchun Pingtung County, Taiwan. |
III
Weak |
272 km (169 mi) ENE from epicenter |
Ishigaki Okinawa, Japan. |
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 VI.
This is likely an aftershock
This earthquake was an aftershock. A larger mag. 6.1 earthquake struck 7 km (5 mi) east-northeast in advance of this 5.4 earthquake around 3 hrs earlier.
Overview of foreshocks and aftershocks
Classification | Magnitude | When | Where |
---|---|---|---|
Foreshock | M 4.4 |
3 days earlier Apr 20, 2024 08:35 (Taipei Time) | 60 km (37 mi) NNE from Main Shock. |
Foreshock | M 5.1 |
2 days earlier Apr 21, 2024 10:40 (Taipei Time) | 30 km (19 mi) S from Main Shock. |
Foreshock | M 4.5 |
2 days earlier Apr 21, 2024 11:07 (Taipei Time) | 44 km (27 mi) NNE from Main Shock. |
Foreshock | M 4.3 |
1 day earlier Apr 21, 2024 17:54 (Taipei Time) | 31 km (19 mi) NNE from Main Shock. |
Foreshock | M 4.7 |
1 day earlier Apr 22, 2024 00:35 (Taipei Time) | 49 km (30 mi) N from Main Shock. |
Foreshock | M 4.3 |
24 hrs earlier Apr 22, 2024 02:53 (Taipei Time) | 21 km (13 mi) N from Main Shock. |
Foreshock | M 4.1 |
18 hrs earlier Apr 22, 2024 08:01 (Taipei Time) | 66 km (41 mi) NNE from Main Shock. |
Foreshock | M 4.3 |
18 hrs earlier Apr 22, 2024 08:03 (Taipei Time) | 66 km (41 mi) NNE from Main Shock. |
Foreshock | M 5.3 |
9 hrs earlier Apr 22, 2024 17:08 (Taipei Time) | 4 km (2.5 mi) SW from Main Shock. |
Foreshock | M 5.1 |
9 hrs earlier Apr 22, 2024 17:12 (Taipei Time) | 10 km (6 mi) NW from Main Shock. |
Foreshock | M 5.2 |
9 hrs earlier Apr 22, 2024 17:16 (Taipei Time) | 40 km (25 mi) WNW from Main Shock. |
Foreshock | M 4.9 |
9 hrs earlier Apr 22, 2024 17:52 (Taipei Time) | 1.1 km (0.7 mi) SW from Main Shock. |
Foreshock | M 4.6 |
8 hrs earlier Apr 22, 2024 18:08 (Taipei Time) | 9 km (5 mi) W from Main Shock. |
Foreshock | M 5.2 |
8 hrs earlier Apr 22, 2024 18:46 (Taipei Time) | 5 km (3 mi) WSW from Main Shock. |
Foreshock | M 5.6 |
8 hrs earlier Apr 22, 2024 18:50 (Taipei Time) | 1.4 km (0.9 mi) SW from Main Shock. |
Foreshock | M 4.4 |
8 hrs earlier Apr 22, 2024 18:55 (Taipei Time) | 14 km (9 mi) WNW from Main Shock. |
Foreshock | M 4.9 |
7 hrs earlier Apr 22, 2024 19:10 (Taipei Time) | 7 km (4 mi) WSW from Main Shock. |
Foreshock | M 5.1 |
7 hrs earlier Apr 22, 2024 19:13 (Taipei Time) | 6 km (4 mi) WNW from Main Shock. |
Foreshock | M 4.3 |
7 hrs earlier Apr 22, 2024 19:22 (Taipei Time) | 11 km (7 mi) W from Main Shock. |
Foreshock | M 5.0 |
7 hrs earlier Apr 22, 2024 19:25 (Taipei Time) | 14 km (9 mi) SSW from Main Shock. |
Foreshock | M 4.9 |
7 hrs earlier Apr 22, 2024 19:34 (Taipei Time) | 14 km (8 mi) WNW from Main Shock. |
Foreshock | M 4.2 |
7 hrs earlier Apr 22, 2024 19:36 (Taipei Time) | 13 km (8 mi) W from Main Shock. |
Foreshock | M 5.1 |
7 hrs earlier Apr 22, 2024 19:45 (Taipei Time) | 10 km (6 mi) SW from Main Shock. |
Foreshock | M 4.3 |
7 hrs earlier Apr 22, 2024 19:47 (Taipei Time) | 11 km (7 mi) WNW from Main Shock. |
Foreshock | M 4.5 |
5 hrs earlier Apr 22, 2024 21:00 (Taipei Time) | 7 km (5 mi) SW from Main Shock. |
Foreshock | M 4.6 |
5 hrs earlier Apr 22, 2024 21:02 (Taipei Time) | 13 km (8 mi) W from Main Shock. |
Foreshock | M 5.1 |
5 hrs earlier Apr 22, 2024 21:13 (Taipei Time) | 12 km (8 mi) SW from Main Shock. |
Foreshock | M 4.5 |
5 hrs earlier Apr 22, 2024 21:42 (Taipei Time) | 7 km (4 mi) NNW from Main Shock. |
Foreshock | M 5.8 |
4 hrs earlier Apr 22, 2024 22:11 (Taipei Time) | 6 km (4 mi) W from Main Shock. |
Foreshock | M 4.3 |
4 hrs earlier Apr 22, 2024 22:12 (Taipei Time) | 14 km (9 mi) W from Main Shock. |
Foreshock | M 4.3 |
4 hrs earlier Apr 22, 2024 22:13 (Taipei Time) | 12 km (7 mi) WNW from Main Shock. |
Foreshock | M 5.0 |
4 hrs earlier Apr 22, 2024 22:20 (Taipei Time) | 2.5 km (1.6 mi) WSW from Main Shock. |
Foreshock | M 4.2 |
4 hrs earlier Apr 22, 2024 22:27 (Taipei Time) | 15 km (9 mi) W from Main Shock. |
Foreshock | M 4.2 |
3 hrs earlier Apr 22, 2024 23:14 (Taipei Time) | 16 km (10 mi) NW from Main Shock. |
Foreshock | M 4.3 |
3 hrs earlier Apr 22, 2024 23:45 (Taipei Time) | 53 km (33 mi) N from Main Shock. |
Foreshock | M 4.4 |
3 hrs earlier Apr 22, 2024 23:56 (Taipei Time) | 10 km (6 mi) W from Main Shock. |
Foreshock | M 4.4 |
2 hrs earlier Apr 23, 2024 00:01 (Taipei Time) | 7 km (4 mi) WNW from Main Shock. |
Foreshock | M 4.6 |
2 hrs earlier Apr 23, 2024 00:01 (Taipei Time) | 2.5 km (1.6 mi) SSE from Main Shock. |
Foreshock | M 4.5 |
2 hrs earlier Apr 23, 2024 00:06 (Taipei Time) | 7 km (4 mi) W from Main Shock. |
Foreshock | M 4.1 |
2 hrs earlier Apr 23, 2024 00:33 (Taipei Time) | 8 km (5 mi) N from Main Shock. |
Foreshock | M 4.0 |
2 hrs earlier Apr 23, 2024 00:45 (Taipei Time) | 5 km (3 mi) N from Main Shock. |
Foreshock | M 4.3 |
2 hrs earlier Apr 23, 2024 00:48 (Taipei Time) | 53 km (33 mi) N from Main Shock. |
Foreshock | M 4.0 |
2 hrs earlier Apr 23, 2024 00:49 (Taipei Time) | 22 km (14 mi) WNW from Main Shock. |
Foreshock | M 4.5 |
46 mins earlier Apr 23, 2024 01:40 (Taipei Time) | 8 km (5 mi) W from Main Shock. |
Foreshock | M 4.0 |
15 mins earlier Apr 23, 2024 02:12 (Taipei Time) | 13 km (8 mi) NW from Main Shock. |
Main Shock | M 6.1 |
Apr 23, 2024 02:26 (Taipei Time) | - |
Aftershock | M 6.0 |
6 mins later Apr 23, 2024 02:32 (Taipei Time) | 19 km (12 mi) NW from Main Shock. |
Aftershock | M 4.1 |
30 mins later Apr 23, 2024 02:56 (Taipei Time) | 14 km (9 mi) NW from Main Shock. |
Aftershock | M 4.2 |
33 mins later Apr 23, 2024 03:00 (Taipei Time) | 14 km (9 mi) NNW from Main Shock. |
Aftershock | M 4.6 |
47 mins later Apr 23, 2024 03:13 (Taipei Time) | 13 km (8 mi) NNW from Main Shock. |
Aftershock | M 4.1 |
50 mins later Apr 23, 2024 03:17 (Taipei Time) | 7 km (5 mi) WNW from Main Shock. |
Aftershock | M 5.0 |
53 mins later Apr 23, 2024 03:19 (Taipei Time) | 9 km (5 mi) NE from Main Shock. |
Aftershock | M 4.2 |
57 mins later Apr 23, 2024 03:24 (Taipei Time) | 21 km (13 mi) NNW from Main Shock. |
Aftershock | M 4.9 |
1 hr later Apr 23, 2024 03:28 (Taipei Time) | 15 km (9 mi) W from Main Shock. |
Aftershock | M 4.9 |
1 hr later Apr 23, 2024 03:34 (Taipei Time) | 16 km (10 mi) WNW from Main Shock. |
Aftershock | M 4.3 |
2 hrs later Apr 23, 2024 03:57 (Taipei Time) | 13 km (8 mi) NNW from Main Shock. |
Aftershock | M 5.2 |
2 hrs later Apr 23, 2024 04:03 (Taipei Time) | 9 km (5 mi) NE from Main Shock. |
Aftershock | M 4.4 |
2 hrs later Apr 23, 2024 04:07 (Taipei Time) | 22 km (13 mi) NNW from Main Shock. |
Aftershock | M 4.0 |
2 hrs later Apr 23, 2024 04:10 (Taipei Time) | 11 km (7 mi) WNW from Main Shock. |
Aftershock | M 5.5 |
2 hrs later Apr 23, 2024 04:49 (Taipei Time) | 9 km (5 mi) SSW from Main Shock. |
Aftershock | M 4.2 |
3 hrs later Apr 23, 2024 05:01 (Taipei Time) | 11 km (7 mi) W from Main Shock. |
Aftershock This Earthquake |
M 5.4 |
3 hrs later Apr 23, 2024 05:04 (Taipei Time) | 7 km (5 mi) WSW from Main Shock. |
Aftershock | M 4.2 |
3 hrs later Apr 23, 2024 05:08 (Taipei Time) | 13 km (8 mi) W from Main Shock. |
Aftershock | M 4.9 |
3 hrs later Apr 23, 2024 05:11 (Taipei Time) | 9 km (5 mi) W from Main Shock. |
Aftershock | M 4.1 |
3 hrs later Apr 23, 2024 05:13 (Taipei Time) | 12 km (7 mi) WNW from Main Shock. |
Aftershock | M 4.8 |
3 hrs later Apr 23, 2024 05:14 (Taipei Time) | 9 km (5 mi) W from Main Shock. |
Aftershock | M 5.3 |
3 hrs later Apr 23, 2024 05:19 (Taipei Time) | 6 km (4 mi) WNW from Main Shock. |
Aftershock | M 5.2 |
3 hrs later Apr 23, 2024 05:24 (Taipei Time) | 7 km (4 mi) W from Main Shock. |
Aftershock | M 4.1 |
3 hrs later Apr 23, 2024 05:26 (Taipei Time) | 11 km (7 mi) W from Main Shock. |
Aftershock | M 5.4 |
3 hrs later Apr 23, 2024 05:31 (Taipei Time) | 9 km (6 mi) N from Main Shock. |
Aftershock | M 4.2 |
3 hrs later Apr 23, 2024 05:46 (Taipei Time) | 13 km (8 mi) NW from Main Shock. |
Aftershock | M 4.0 |
4 hrs later Apr 23, 2024 06:26 (Taipei Time) | 21 km (13 mi) WNW from Main Shock. |
Aftershock | M 4.5 |
5 hrs later Apr 23, 2024 07:02 (Taipei Time) | 9 km (6 mi) W from Main Shock. |
Aftershock | M 4.1 |
5 hrs later Apr 23, 2024 07:17 (Taipei Time) | 22 km (14 mi) NNW from Main Shock. |
Aftershock | M 4.3 |
5 hrs later Apr 23, 2024 07:35 (Taipei Time) | 11 km (7 mi) NNW from Main Shock. |
Aftershock | M 4.3 |
5 hrs later Apr 23, 2024 07:38 (Taipei Time) | 22 km (14 mi) NNW from Main Shock. |
Aftershock | M 4.5 |
6 hrs later Apr 23, 2024 08:03 (Taipei Time) | 2.8 km (1.7 mi) S from Main Shock. |
Aftershock | M 5.8 |
6 hrs later Apr 23, 2024 08:04 (Taipei Time) | 10 km (6 mi) NNE from Main Shock. |
Aftershock | M 4.3 |
6 hrs later Apr 23, 2024 08:06 (Taipei Time) | 13 km (8 mi) NW from Main Shock. |
Aftershock | M 5.2 |
6 hrs later Apr 23, 2024 08:11 (Taipei Time) | 20 km (12 mi) NNW from Main Shock. |
Aftershock | M 4.4 |
6 hrs later Apr 23, 2024 08:55 (Taipei Time) | 19 km (12 mi) NW from Main Shock. |
Aftershock | M 4.5 |
7 hrs later Apr 23, 2024 09:19 (Taipei Time) | 11 km (7 mi) NNW from Main Shock. |
Aftershock | M 4.7 |
7 hrs later Apr 23, 2024 09:22 (Taipei Time) | 15 km (9 mi) NNW from Main Shock. |
Aftershock | M 4.9 |
7 hrs later Apr 23, 2024 09:45 (Taipei Time) | 8 km (5 mi) NW from Main Shock. |
Aftershock | M 5.2 |
8 hrs later Apr 23, 2024 10:21 (Taipei Time) | 11 km (7 mi) N from Main Shock. |
Aftershock | M 4.8 |
8 hrs later Apr 23, 2024 10:23 (Taipei Time) | 19 km (12 mi) NNW from Main Shock. |
Aftershock | M 4.5 |
8 hrs later Apr 23, 2024 10:27 (Taipei Time) | 17 km (10 mi) NNW from Main Shock. |
Aftershock | M 4.0 |
9 hrs later Apr 23, 2024 11:44 (Taipei Time) | 12 km (7 mi) NW from Main Shock. |
Aftershock | M 4.7 |
11 hrs later Apr 23, 2024 13:08 (Taipei Time) | 2.5 km (1.6 mi) SW from Main Shock. |
Aftershock | M 4.0 |
11 hrs later Apr 23, 2024 13:24 (Taipei Time) | 17 km (11 mi) NNW from Main Shock. |
Aftershock | M 4.1 |
16 hrs later Apr 23, 2024 18:22 (Taipei Time) | 24 km (15 mi) NNW from Main Shock. |
Aftershock | M 4.0 |
16 hrs later Apr 23, 2024 18:31 (Taipei Time) | 21 km (13 mi) NNW from Main Shock. |
Aftershock | M 4.6 |
17 hrs later Apr 23, 2024 19:13 (Taipei Time) | 18 km (11 mi) N from Main Shock. |
Aftershock | M 4.4 |
18 hrs later Apr 23, 2024 20:40 (Taipei Time) | 2.9 km (1.8 mi) SE from Main Shock. |
Aftershock | M 4.1 |
19 hrs later Apr 23, 2024 21:29 (Taipei Time) | 23 km (14 mi) N from Main Shock. |
Aftershock | M 4.9 |
22 hrs later Apr 24, 2024 00:02 (Taipei Time) | 39 km (24 mi) N from Main Shock. |
Aftershock | M 4.0 |
23 hrs later Apr 24, 2024 01:12 (Taipei Time) | 7 km (4 mi) WNW from Main Shock. |
Aftershock | M 4.1 |
1 day later Apr 24, 2024 09:46 (Taipei Time) | 24 km (15 mi) NNE from Main Shock. |
Aftershock | M 4.4 |
1 day later Apr 24, 2024 09:53 (Taipei Time) | 25 km (15 mi) NNE from Main Shock. |
Aftershock | M 4.3 |
1 day later Apr 24, 2024 11:28 (Taipei Time) | 4 km (2.2 mi) SSE from Main Shock. |
Aftershock | M 4.4 |
1 day later Apr 24, 2024 13:01 (Taipei Time) | 64 km (40 mi) NNE from Main Shock. |
Aftershock | M 4.9 |
2 days later Apr 24, 2024 15:30 (Taipei Time) | 4 km (2.4 mi) NNW from Main Shock. |
Aftershock | M 4.3 |
2 days later Apr 24, 2024 15:51 (Taipei Time) | 11 km (7 mi) NNW from Main Shock. |
Aftershock | M 4.0 |
2 days later Apr 24, 2024 16:31 (Taipei Time) | 64 km (40 mi) NNE from Main Shock. |
Aftershock | M 4.3 |
2 days later Apr 24, 2024 17:23 (Taipei Time) | 22 km (14 mi) N from Main Shock. |
Aftershock | M 4.0 |
2 days later Apr 24, 2024 21:37 (Taipei Time) | 10 km (6 mi) NW from Main Shock. |
Aftershock | M 4.6 |
2 days later Apr 25, 2024 00:59 (Taipei Time) | 74 km (46 mi) ENE from Main Shock. |
Aftershock | M 5.1 |
2 days later Apr 25, 2024 02:11 (Taipei Time) | 72 km (45 mi) ENE from Main Shock. |
Aftershock | M 4.3 |
2 days later Apr 25, 2024 03:19 (Taipei Time) | 83 km (51 mi) NE from Main Shock. |
Aftershock | M 4.0 |
2 days later Apr 25, 2024 07:53 (Taipei Time) | 20 km (12 mi) N from Main Shock. |
Aftershock | M 4.0 |
2 days later Apr 25, 2024 08:11 (Taipei Time) | 7 km (4 mi) WSW from Main Shock. |
Aftershock | M 4.7 |
2 days later Apr 25, 2024 08:19 (Taipei Time) | 6 km (4 mi) SSE from Main Shock. |
Aftershock | M 4.7 |
2 days later Apr 25, 2024 09:23 (Taipei Time) | 10 km (6 mi) N from Main Shock. |
Aftershock | M 4.0 |
2 days later Apr 25, 2024 09:43 (Taipei Time) | 6 km (4 mi) SW from Main Shock. |
Aftershock | M 4.2 |
3 days later Apr 25, 2024 22:17 (Taipei Time) | 55 km (34 mi) N from Main Shock. |
Aftershock | M 4.2 |
3 days later Apr 26, 2024 00:20 (Taipei Time) | 51 km (32 mi) 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. In total, 71 earthquakes with a magnitude of 5.4 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 2 months.
Low tsunami risk
Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.
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 under the sea. | Not this earthquake. This earthquake had a magnitude of 5.4. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 5 km (3 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 03/05/24 21:28 (). 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.