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Sequence · 2017-09-08

M 8.2 · Observed seismic cluster · 2017 Tehuantepec, Mexico Earthquake

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.

M4.5+ events in cluster131
M6+1
Analysis radius532 km
Observation window14 days
Largest secondary eventM 5.8
Quake Pulse · Major sequence

What the sequence shows

After the M 8.2 reference event, Quake Pulse counts 57 M4+ event(s) in the first 24 hours and 107 in the first 7 days. Fourteen-day M4.5+ activity is about 25.9× the average equivalent derived from the previous year. The largest secondary event is M 1.1 below the reference event.

100/100Sequence score
Events in the previous 24 h0
In the first hour11
In the first 24 hours57
In the first 7 days107
Within 14 days131
Peak one-hour count11

Local historical context

Descriptive comparison with M4.5+ events observed in the same radius during the 365 days before the sequence.

M4.5+ events / 365 d132Average 14-day equivalent5.1Activity / baseline ratio25.9×

A ratio above 1 means denser M4.5+ activity than the average equivalent derived from the previous 365 days. It is not a risk measure or a forecast.

Reference event

Largest secondary eventM 7.1Magnitude gapM 1.1Observed duration13.6 d

Earlier events are shown as context only. They are not labelled precursors and should not be interpreted as predictive signals.

Evolving sequence map

Shows M4+ cluster events according to elapsed time after the reference event.

1 hour24 hours7 days14 days
2017 Tehuantepec, Mexico Earthquake · 532 kmInteractive 3D view of earthquakes within 532 km of 2017 Tehuantepec, Mexico Earthquake.2017 Tehuantepec, Mexico EarthquakeM 5.7 · 100 km SSW of Cabeza de Toro, Mexico · 46.1 kmM 4.8 · 48 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico · 49.0 kmM 5.3 · 73 km S of San Francisco del Mar Viejo, Mexico · 94.2 kmM 4.8 · 29 km S of San Francisco del Mar Viejo, Mexico · 129.3 kmM 5.2 · 113 km S of San Francisco del Mar Viejo, Mexico · 77.3 kmM 4.6 · 81 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 14.7 kmM 5.2 · 98 km SW of Cabeza de Toro, Mexico · 61.9 kmM 5.1 · 112 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 25.1 kmM 4.7 · 62 km SSE of San Mateo del Mar, Mexico · 123.4 kmM 4.9 · 81 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 15.4 kmM 5.0 · 76 km S of San Francisco del Mar Viejo, Mexico · 104.4 kmM 4.6 · 79 km SW of Doctor Belisario Domínguez (La Barra), Mexico · 38.5 kmM 4.6 · 88 km S of San Francisco del Mar Viejo, Mexico · 84.0 kmM 4.5 · 78 km SSE of San Mateo del Mar, Mexico · 109.9 kmM 5.3 · near the coast of Oaxaca, Mexico · 36.3 kmM 4.5 · 66 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 30.5 kmM 4.6 · 35 km SW of San Luqueño, Mexico · 87.0 kmM 4.5 · 80 km S of San Francisco del Mar Viejo, Mexico · 103.6 kmM 4.5 · 92 km SSW of La Gloria, Mexico · 75.6 kmM 4.6 · 82 km SW of Cabeza de Toro, Mexico · 64.7 kmM 4.5 · 61 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 32.6 kmM 4.6 · 120 km S of San Francisco del Mar Viejo, Mexico · 87.7 kmM 4.5 · 129 km S of San Francisco del Mar Viejo, Mexico · 76.3 kmM 5.0 · 49 km SSE of San Mateo del Mar, Mexico · 134.5 kmM 4.8 · 24 km SSE of San Francisco del Mar Viejo, Mexico · 131.3 kmM 4.7 · 99 km SW of Cabeza de Toro, Mexico · 57.8 kmM 4.5 · near the coast of Oaxaca, Mexico · 118.9 kmM 5.2 · 90 km S of San Francisco del Mar Viejo, Mexico · 84.5 kmM 4.7 · 110 km SW of Cabeza de Toro, Mexico · 51.0 kmM 4.5 · 134 km S of San Francisco del Mar Viejo, Mexico · 81.2 kmM 4.5 · 108 km S of San Francisco del Mar Viejo, Mexico · 78.5 kmM 4.6 · 57 km SSW of Doctor Belisario Domínguez (La Barra), Mexico · 47.9 kmM 5.1 · 31 km SSW of La Gloria, Mexico · 101.9 kmM 5.0 · 103 km S of San Francisco del Mar Viejo, Mexico · 90.0 kmM 5.3 · 75 km SSW of La Gloria, Mexico · 76.4 kmM 4.6 · 141 km S of San Francisco del Mar Viejo, Mexico · 81.8 kmM 4.9 · 93 km SW of Cabeza de Toro, Mexico · 64.5 kmM 4.8 · 102 km S of San Mateo del Mar, Mexico · 107.2 kmM 5.0 · 113 km SW of Cabeza de Toro, Mexico · 61.0 kmM 5.1 · 21 km SW of Doctor Belisario Domínguez (La Barra), Mexico · 80.8 kmM 4.8 · 99 km SW of Cabeza de Toro, Mexico · 50.5 kmM 4.9 · 68 km S of San Francisco del Mar Viejo, Mexico · 107.2 kmM 4.9 · 85 km SW of Cabeza de Toro, Mexico · 61.7 kmM 5.0 · 58 km S of San Mateo del Mar, Mexico · 132.6 kmM 5.3 · 2 km N of San Mateo del Mar, Mexico · 177.5 kmM 4.5 · 77 km S of San Francisco del Mar Viejo, Mexico · 95.4 kmM 4.7 · 101 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 23.0 kmM 4.7 · 128 km SSW of Cabeza de Toro, Mexico · 55.3 kmM 4.8 · 94 km SSW of La Gloria, Mexico · 71.9 kmM 4.5 · 82 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico · 28.4 kmM 4.7 · 60 km S of San Francisco del Mar Viejo, Mexico · 108.1 kmM 4.7 · 88 km SSE of San Mateo del Mar, Mexico · 108.2 kmM 4.8 · 62 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico · 33.8 kmM 4.9 · 109 km SW of Doctor Belisario Domínguez (La Barra), Mexico · 41.3 kmM 5.1 · 66 km SSE of San Mateo del Mar, Mexico · 118.0 kmM 4.9 · 36 km SW of La Gloria, Mexico · 109.7 kmM 4.7 · 113 km SW of Cabeza de Toro, Mexico · 58.6 km
2017 Tehuantepec, Mexico Earthquake532 km57 Recent earthquakes

Detailed timeline

Dots represent M4+ events retained by the sequence detector. Dot size depends on magnitude.

0 h24 h7 d14 d

Sequences are descriptive groupings based on spatial and temporal proximity. Quake Pulse does not establish a causal link between every event here and does not provide earthquake forecasts.

Quake Pulse

Main-event impact

2,650 Felt reports · PAGER RED · Tsunami indicator · Shallow

100/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 8.22017 Tehuantepec, Mexico Earthquake47.4 km2017-09-08 04:49:19 UTCView event →
M 5.7100 km SSW of Cabeza de Toro, Mexico36.3 km2017-09-08 05:01:33 UTCView event →
M 4.848 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico62.6 km2017-09-08 05:13:45 UTCView event →
M 5.373 km S of San Francisco del Mar Viejo, Mexico51.1 km2017-09-08 05:17:43 UTCView event →
M 4.829 km S of San Francisco del Mar Viejo, Mexico41.5 km2017-09-08 05:20:59 UTCView event →
M 5.2113 km S of San Francisco del Mar Viejo, Mexico49.2 km2017-09-08 05:24:36 UTCView event →
M 4.681 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico39.5 km2017-09-08 05:29:07 UTCView event →
M 5.298 km SW of Cabeza de Toro, Mexico45.8 km2017-09-08 05:33:37 UTCView event →
M 5.1112 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico44.5 km2017-09-08 05:34:28 UTCView event →
M 4.762 km SSE of San Mateo del Mar, Mexico60.7 km2017-09-08 05:36:59 UTCView event →
M 4.981 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico68.3 km2017-09-08 05:39:16 UTCView event →
M 5.076 km S of San Francisco del Mar Viejo, Mexico30.3 km2017-09-08 05:44:27 UTCView event →
M 4.679 km SW of Doctor Belisario Domínguez (La Barra), Mexico54.8 km2017-09-08 05:57:03 UTCView event →
M 4.688 km S of San Francisco del Mar Viejo, Mexico48.5 km2017-09-08 06:08:48 UTCView event →
M 4.578 km SSE of San Mateo del Mar, Mexico42.5 km2017-09-08 07:59:56 UTCView event →
M 5.3near the coast of Oaxaca, Mexico50.8 km2017-09-08 08:34:34 UTCView event →
M 4.566 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico66.2 km2017-09-08 08:42:48 UTCView event →
M 4.635 km SW of San Luqueño, Mexico52.9 km2017-09-08 08:43:00 UTCView event →
M 4.580 km S of San Francisco del Mar Viejo, Mexico29.8 km2017-09-08 09:08:17 UTCView event →
M 4.592 km SSW of La Gloria, Mexico66.6 km2017-09-08 09:10:21 UTCView event →
M 4.682 km SW of Cabeza de Toro, Mexico53.5 km2017-09-08 09:12:33 UTCView event →
M 4.561 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico76.2 km2017-09-08 09:15:10 UTCView event →
M 4.6120 km S of San Francisco del Mar Viejo, Mexico34.3 km2017-09-08 10:18:52 UTCView event →
M 4.5129 km S of San Francisco del Mar Viejo, Mexico16.8 km2017-09-08 11:11:25 UTCView event →
M 5.049 km SSE of San Mateo del Mar, Mexico23.8 km2017-09-08 11:25:54 UTCView event →
M 4.824 km SSE of San Francisco del Mar Viejo, Mexico68.0 km2017-09-08 11:43:12 UTCView event →
M 4.799 km SW of Cabeza de Toro, Mexico41.3 km2017-09-08 11:51:47 UTCView event →
M 4.5near the coast of Oaxaca, Mexico22.3 km2017-09-08 12:03:26 UTCView event →
M 5.290 km S of San Francisco del Mar Viejo, Mexico56.7 km2017-09-08 12:06:17 UTCView event →
M 4.7110 km SW of Cabeza de Toro, Mexico35.0 km2017-09-08 12:45:59 UTCView event →
M 4.5134 km S of San Francisco del Mar Viejo, Mexico27.2 km2017-09-08 13:36:30 UTCView event →
M 4.5108 km S of San Francisco del Mar Viejo, Mexico35.0 km2017-09-08 13:43:55 UTCView event →
M 4.657 km SSW of Doctor Belisario Domínguez (La Barra), Mexico52.5 km2017-09-08 14:16:25 UTCView event →
M 5.131 km SSW of La Gloria, Mexico82.7 km2017-09-08 14:25:03 UTCView event →
M 5.0103 km S of San Francisco del Mar Viejo, Mexico41.1 km2017-09-08 14:40:10 UTCView event →
M 5.375 km SSW of La Gloria, Mexico60.2 km2017-09-08 14:45:02 UTCView event →
M 4.6141 km S of San Francisco del Mar Viejo, Mexico10.0 km2017-09-08 16:08:01 UTCView event →
M 4.993 km SW of Cabeza de Toro, Mexico63.8 km2017-09-08 16:12:26 UTCView event →
M 4.8102 km S of San Mateo del Mar, Mexico30.3 km2017-09-08 16:14:27 UTCView event →
M 5.0113 km SW of Cabeza de Toro, Mexico31.4 km2017-09-08 16:19:15 UTCView event →
M 5.121 km SW of Doctor Belisario Domínguez (La Barra), Mexico86.2 km2017-09-08 16:42:29 UTCView event →
M 4.899 km SW of Cabeza de Toro, Mexico35.0 km2017-09-08 17:01:45 UTCView event →
M 4.968 km S of San Francisco del Mar Viejo, Mexico21.0 km2017-09-08 17:02:52 UTCView event →
M 4.985 km SW of Cabeza de Toro, Mexico37.3 km2017-09-08 18:00:29 UTCView event →
M 5.058 km S of San Mateo del Mar, Mexico27.0 km2017-09-08 18:24:14 UTCView event →
M 5.32 km N of San Mateo del Mar, Mexico63.2 km2017-09-08 18:57:24 UTCView event →
M 4.577 km S of San Francisco del Mar Viejo, Mexico52.1 km2017-09-08 19:04:46 UTCView event →
M 4.7101 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico38.1 km2017-09-08 19:06:52 UTCView event →
M 4.7128 km SSW of Cabeza de Toro, Mexico20.0 km2017-09-08 20:09:18 UTCView event →
M 4.894 km SSW of La Gloria, Mexico53.0 km2017-09-08 21:31:26 UTCView event →
M 4.582 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico56.6 km2017-09-08 21:39:37 UTCView event →
M 4.760 km S of San Francisco del Mar Viejo, Mexico43.0 km2017-09-08 21:53:01 UTCView event →
M 4.788 km SSE of San Mateo del Mar, Mexico35.0 km2017-09-08 21:57:04 UTCView event →
M 4.862 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico32.1 km2017-09-08 22:28:43 UTCView event →
M 4.9109 km SW of Doctor Belisario Domínguez (La Barra), Mexico19.6 km2017-09-09 02:32:05 UTCView event →
M 5.166 km SSE of San Mateo del Mar, Mexico57.7 km2017-09-09 02:43:44 UTCView event →
M 4.936 km SW of La Gloria, Mexico62.6 km2017-09-09 03:08:15 UTCView event →
M 4.7113 km SW of Cabeza de Toro, Mexico27.9 km2017-09-09 04:22:23 UTCView event →
M 5.595 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico29.0 km2017-09-09 04:54:52 UTCView event →
M 4.762 km S of San Francisco del Mar Viejo, Mexico51.5 km2017-09-09 05:22:18 UTCView event →
M 4.575 km SW of Cabeza de Toro, Mexico53.5 km2017-09-09 06:12:11 UTCView event →
M 5.041 km SSW of San Francisco del Mar Viejo, Mexico50.4 km2017-09-09 06:24:23 UTCView event →
M 4.878 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico62.3 km2017-09-09 06:28:15 UTCView event →
M 4.874 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico54.0 km2017-09-09 08:01:36 UTCView event →
M 4.971 km S of San Francisco del Mar Viejo, Mexico47.4 km2017-09-09 11:50:51 UTCView event →
M 4.724 km SSW of San Francisco del Mar Viejo, Mexico51.9 km2017-09-09 12:17:43 UTCView event →
M 4.593 km S of San Francisco del Mar Viejo, Mexico25.5 km2017-09-09 12:25:03 UTCView event →
M 4.796 km SSW of Cabeza de Toro, Mexico50.1 km2017-09-09 13:18:46 UTCView event →
M 4.8102 km SW of Cabeza de Toro, Mexico31.5 km2017-09-09 13:21:57 UTCView event →
M 4.673 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico62.2 km2017-09-09 15:27:48 UTCView event →
M 4.8126 km S of San Francisco del Mar Viejo, Mexico47.0 km2017-09-09 15:29:06 UTCView event →
M 5.354 km S of San Mateo del Mar, Mexico32.3 km2017-09-09 15:30:06 UTCView event →
M 4.882 km SSE of San Mateo del Mar, Mexico41.2 km2017-09-09 20:26:14 UTCView event →
M 5.892 km S of San Francisco del Mar Viejo, Mexico29.0 km2017-09-10 03:07:22 UTCView event →
M 4.5124 km S of San Francisco del Mar Viejo, Mexico24.9 km2017-09-10 07:15:20 UTCView event →
M 5.253 km SSE of San Francisco del Mar Viejo, Mexico57.6 km2017-09-10 08:39:38 UTCView event →
M 4.957 km SSE of San Mateo del Mar, Mexico37.3 km2017-09-10 10:14:15 UTCView event →
M 4.547 km SW of Corralero, Mexico26.7 km2017-09-10 12:00:30 UTCView event →
M 4.598 km SW of Cabeza de Toro, Mexico52.7 km2017-09-10 13:38:07 UTCView event →
M 4.673 km SSW of Corralero, Mexico10.0 km2017-09-10 13:40:08 UTCView event →
M 4.699 km SW of Cabeza de Toro, Mexico42.9 km2017-09-10 15:28:51 UTCView event →
M 4.5110 km SW of Doctor Belisario Domínguez (La Barra), Mexico54.3 km2017-09-10 20:47:04 UTCView event →
M 4.558 km SE of El Carrizal, Mexico24.1 km2017-09-10 20:47:29 UTCView event →
M 4.659 km SSE of Champerico, Guatemala49.6 km2017-09-10 21:23:10 UTCView event →
M 4.990 km SSW of Cabeza de Toro, Mexico59.4 km2017-09-11 00:32:20 UTCView event →
M 4.762 km S of San Mateo del Mar, Mexico51.5 km2017-09-11 02:23:51 UTCView event →
M 5.089 km SW of Cabeza de Toro, Mexico32.7 km2017-09-11 14:55:58 UTCView event →
M 5.5107 km SW of El Palmarcito, Mexico27.0 km2017-09-11 21:09:10 UTCView event →
M 5.049 km S of San Mateo del Mar, Mexico48.3 km2017-09-11 22:20:53 UTCView event →
M 4.6102 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico67.3 km2017-09-12 01:00:19 UTCView event →
M 5.1101 km SSW of La Gloria, Mexico17.3 km2017-09-12 01:12:29 UTCView event →
M 4.699 km SW of Cabeza de Toro, Mexico48.9 km2017-09-12 01:47:59 UTCView event →
M 4.7near the coast of Oaxaca, Mexico28.0 km2017-09-12 02:09:46 UTCView event →
M 4.5near the coast of Oaxaca, Mexico35.0 km2017-09-12 02:30:50 UTCView event →
M 5.487 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico42.5 km2017-09-12 05:08:45 UTCView event →
M 4.6103 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico34.9 km2017-09-12 05:20:09 UTCView event →
M 4.564 km S of San Mateo del Mar, Mexico30.3 km2017-09-12 09:20:03 UTCView event →
M 5.089 km WSW of El Palmarcito, Mexico38.0 km2017-09-12 15:28:21 UTCView event →
M 4.520 km SSW of La Esperanza (El Zapotal), Mexico73.2 km2017-09-12 16:58:13 UTCView event →
M 4.693 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico43.2 km2017-09-12 18:29:32 UTCView event →
M 5.0117 km SW of Cabeza de Toro, Mexico14.1 km2017-09-13 02:01:38 UTCView event →
M 4.527 km WSW of El Palmarcito, Mexico66.8 km2017-09-13 05:09:33 UTCView event →
M 4.576 km S of San Francisco del Mar Viejo, Mexico31.4 km2017-09-13 09:46:20 UTCView event →
M 4.54 km S of Doctor Belisario Domínguez (La Barra), Mexico95.2 km2017-09-13 12:48:32 UTCView event →
M 5.155 km SSE of El Carrizal, Mexico13.3 km2017-09-13 21:30:46 UTCView event →
M 4.7106 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico40.5 km2017-09-13 21:42:15 UTCView event →
M 4.775 km WSW of Puerto Madero, Mexico52.7 km2017-09-14 05:03:19 UTCView event →
M 4.5106 km SSW of Cabeza de Toro, Mexico35.7 km2017-09-14 06:10:50 UTCView event →
M 4.5116 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico34.1 km2017-09-16 10:18:28 UTCView event →
M 4.9104 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico51.6 km2017-09-16 11:23:25 UTCView event →
M 5.611 km SSE of Salina Cruz, Mexico35.0 km2017-09-16 14:18:56 UTCView event →
M 4.514 km SE of Salina Cruz, Mexico31.5 km2017-09-16 17:07:15 UTCView event →
M 5.1111 km S of San Francisco del Mar Viejo, Mexico12.8 km2017-09-16 19:35:28 UTCView event →
M 4.590 km SW of Cabeza de Toro, Mexico50.9 km2017-09-16 23:10:39 UTCView event →
M 4.519 km S of Colonia Juárez, Mexico50.9 km2017-09-17 06:03:32 UTCView event →
M 5.033 km SSE of El Carrizal, Mexico10.0 km2017-09-17 06:07:51 UTCView event →
M 4.918 km ESE of El Carrizal, Mexico5.7 km2017-09-18 12:06:55 UTCView event →
M 5.6108 km S of San Francisco del Mar Viejo, Mexico10.0 km2017-09-18 14:19:12 UTCView event →
M 4.8119 km S of San Francisco del Mar Viejo, Mexico24.0 km2017-09-18 15:13:57 UTCView event →
M 4.9102 km S of San Mateo del Mar, Mexico20.1 km2017-09-18 19:51:30 UTCView event →
M 4.963 km S of San Francisco del Mar Viejo, Mexico55.0 km2017-09-19 07:03:01 UTCView event →
M 5.598 km SW of Manuel Ávila Camacho (Ponte Duro), Mexico29.7 km2017-09-19 07:53:15 UTCView event →
M 4.998 km SSW of Doctor Belisario Domínguez (La Barra), Mexico18.1 km2017-09-19 07:58:44 UTCView event →
M 7.11 km S of Matzaco, Mexico48.0 km2017-09-19 18:14:38 UTCView event →
M 5.0108 km S of San Francisco del Mar Viejo, Mexico22.5 km2017-09-19 21:13:15 UTCView event →
M 4.613 km ENE of San Mateo del Mar, Mexico45.3 km2017-09-19 23:11:32 UTCView event →
M 4.94 km ENE of Acatenango, Guatemala178.9 km2017-09-20 02:37:35 UTCView event →
M 4.620 km SSE of Salina Cruz, Mexico35.0 km2017-09-20 03:28:02 UTCView event →
M 4.567 km SE of El Carrizal, Mexico35.0 km2017-09-20 04:15:47 UTCView event →
M 4.733 km SW of La Esperanza (El Zapotal), Mexico68.0 km2017-09-20 10:39:28 UTCView event →
M 4.816 km SW of Tamaulipas, Mexico84.9 km2017-09-21 11:44:27 UTCView event →
M 4.974 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico68.4 km2017-09-21 20:22:31 UTCView event →

Interpretation

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions. Historical small-earthquake detection varies through time. Long-term comparisons are most robust at higher magnitude thresholds.

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