The red marker on the map is the epicenter of the earthquake, which was located off the east coast of Mindanao Island, Philippines, at a depth of 60 km, 121 km E of Davao, 447 km SE of Cebu.
|
Time in origin (GMT) |
Latitude, degree |
Longitude, degree |
Depth, km |
Stations number |
Ms/N |
mb/N |
I0 (calculated) |
GAP |
Center |
| 1
|
01:43:59.0
|
7.34 |
126.64 |
60.0 |
72
|
7.2/54 |
6.9/54 |
7.5 |
105
|
GS RAS(Verified) Federal research center, Geophysical survey of Russian Academy of Sciences
|
|
2
|
01:43:52.5
|
7.26 |
126.23 |
10.0 |
14
|
|
7.0/14 |
|
|
GS RAS(Preliminary) Federal research center, Geophysical survey of Russian Academy of Sciences
|
|
3
|
01:43:59.7
|
7.26 |
126.75 |
58.1 |
56
|
7.4 Mw/65 |
6.7/73 |
|
35
|
NEIC National Earthquakes Information Center of US Geological Service
|
|
4
|
01:43:59.8
|
7.33 |
126.68 |
57.6 |
1201
|
7.4 Mw |
6.8/470 |
|
8
|
CSEM European - Mediterranean seismological center
|
Fig. 1 presents fragments of records obtained from digital stations Taipei (∆ 18.2º) Kunigami (∆ 19.4º), Mys Shultsa (∆ 35.3º), Vladivostok (∆ 35.9º), Ussuriysk (∆ 37º). Fig. 2 presents fragments of records obtained from digital stations Yakutsk (∆ 54.6º), Magadan (∆ 55.2º), Tiksi (∆ 64.3º), Bilibino (∆ 66.2º), Kislovodsk (∆ 80.6º).
Image 1
Image 2
GS RAS registered 29 aftershocks with M>=4.8 within 24 hours after the main shock. Events with magnitude M>5.0 are listed below.
| N |
Time in origin (GMT) |
Latitude, degree |
Longitude, degree |
Depth, km |
Stations number |
Ms/N |
mb/N |
I0 (calculated) |
Region |
| 20255884
|
10/10/2025 02:11:43.0.0 |
7.06 |
126.8 |
60.0 |
45 |
|
5.7/33 |
4-4.5 |
Mindanao, Philippines
|
| 20255886
|
10/10/2025 03:23:03.0.0 |
7.23 |
126.9 |
60.0 |
31 |
|
5.1/21 |
2.5-3 |
Mindanao, Philippines
|
| 20255888
|
10/10/2025 03:32:16.0.0 |
7.06 |
126.75 |
70.0 |
65 |
|
5.7/41 |
4-4.5 |
Mindanao, Philippines
|
| 20255889
|
10/10/2025 05:47:46.0.0 |
6.81 |
126.99 |
60.0 |
49 |
|
5.4/39 |
3.5-4 |
Mindanao, Philippines
|
| 20255890
|
10/10/2025 05:48:53.0.0 |
6.87 |
126.81 |
60.0 |
25 |
|
5.3/23 |
3-3.5 |
Mindanao, Philippines
|
| 20255892
|
10/10/2025 06:06:24.0.0 |
7.2 |
126.93 |
70.0 |
26 |
|
5.1/18 |
2.5-3 |
Mindanao, Philippines
|
| 20255897
|
10/10/2025 06:32:23.0.0 |
7.04 |
126.85 |
60.0 |
29 |
|
5.1/17 |
2.5-3 |
Mindanao, Philippines
|
| 20255893
|
10/10/2025 07:24:11.0.0 |
7.06 |
126.84 |
60.0 |
44 |
|
5.3/30 |
3-3.5 |
Mindanao, Philippines
|
| 20255894
|
10/10/2025 07:38:42.0.0 |
7.15 |
126.91 |
60.0 |
29 |
|
5.1/19 |
2.5-3 |
Mindanao, Philippines
|
| 20255900
|
10/10/2025 09:06:42.0.0 |
7.24 |
126.97 |
60.0 |
31 |
|
5.1/21 |
2.5-3 |
Mindanao, Philippines
|
| 20255899
|
10/10/2025 09:43:32.0.0 |
7.22 |
126.79 |
60.0 |
34 |
|
5.1/26 |
2.5-3 |
Mindanao, Philippines
|
| 20255902
|
10/10/2025 10:01:02.0.0 |
7.22 |
126.86 |
70.0 |
28 |
|
5.2/14 |
2.5-3 |
Mindanao, Philippines
|
| 20255905
|
10/10/2025 10:20:32.0.0 |
7.17 |
126.81 |
60.0 |
34 |
|
5.2/23 |
3-3.5 |
Mindanao, Philippines
|
| 20255898
|
10/10/2025 11:12:06.0.0 |
7.09 |
126.57 |
60.0 |
68 |
6.5/50 |
6.7/54 |
6.5 |
Mindanao, Philippines
|
| 20255912
|
10/10/2025 12:49:43.0.0 |
6.98 |
127.12 |
50.0 |
37 |
|
5.2/31 |
3-3.5 |
Philippine Islands region
|
| 20255911
|
10/10/2025 13:13:38.0.0 |
7.25 |
126.87 |
60.0 |
35 |
|
5.2/33 |
3-3.5 |
Mindanao, Philippines
|
| 20255924
|
10/10/2025 22:20:52.0.0 |
7.16 |
126.72 |
60.0 |
27 |
|
5.1/22 |
2.5-3 |
Mindanao, Philippines
|
| 20255933
|
11/10/2025 10:27:23.0.0 |
7.22 |
126.75 |
60.0 |
73 |
|
5.8/53 |
4.5-5 |
Mindanao, Philippines
|
| 20255938
|
11/10/2025 14:32:58.0.0 |
8.88 |
126.36 |
60.0 |
68 |
|
5.9/54 |
4.5-5 |
Mindanao, Philippines
|
Focal mechanism solution of the origin was calculated by GS RAS with signs of initial arrivals of P waves at 103 stations, including 86 stations which registered compression waves (plus signs), and 17 stations which registered tensile waves (minus signs). The stations are located in the interval of epicentral distances 1-99º and in azimuth sector Az=1-356º. Focal mechanism solution in stereographic projection on the lower hemisphere and elements of the mechanism are presented in the table. The table also contains focal mechanism solutions obtained at the USGS NEIC with WW-phase Moment Tensor (Mww) technique and in Lamont-Dohert Earth Observatory of Columbia University, USA (LDEO GCMT) with СМТ (Centroid moment tensor) technique. Solutions from different centers are close. The earthquake was caused by predominantly east-oriented compression stresses (AZ=100º) according to GS RAS and E-SE (AZ=102-106º) according to USGS NEIC and LDEO GCMT. One nodal plane NP1 strikes south (STK=174-176º), another NP2 strikes N-NE (STK=24-32º), both planes aredipping to the horizon at close angles (DIP=39-57º). The type of motion along both planes – reverse fault. The seismic moment of the earthquake was obtained by GS RAS from the spectra of longitudinal waves registered at the station "Talaya" (∆ 48.1º), it makes Mo=8.863*10**19 N*m, Mw=7.3. The seismic moment according to USGS NEIC makes Mo=1.712*10**20 N*m, Mww=7.42. According to LDEO GCMT it makes Mo=1.67*10**20 N*m, Mw=7.4.
| Axes of main strengths |
Nodal planes |
Center |
|
| T |
P |
N |
NP1 |
NP2 |
PI: 76
Azm: 11
|
PI: 0
Azm: 100
|
PI: 14
Azm: 190
|
Stk: 176
Dp: 47
Slip: 70
|
Stk: 24
Dp: 47
Slip: 110
|
GS RAS Federal research center, Geophysical survey of Russian Academy of Sciences
|
|
PI: 69
Azm: 350
|
PI: 10
Azm: 106
|
PI: 19
Azm: 199
|
Stk: 174
Dp: 39
Slip: 59
|
Stk: 32
Dp: 57
Slip: 113
|
NEIC National Earthquakes Information Center of US Geological Service
|
|
PI: 73
Azm: 346
|
PI: 8
Azm: 103
|
PI: 15
Azm: 195
|
Stk: 175
Dp: 39
Slip: 66
|
Stk: 26
Dp: 55
Slip: 109
|
GCMT Lamont-Doherty Earth Observatory Global CMT Columbia University, USA
|
|