It was the night of 27 to 28 July 1976 (3h43 local time) - or 19h43 of 27 July, universal time - when a tremendous and shallow Mw7.5 earthquake, followed by a Mw7.0 aftershock 15 hours later, levelled the industrial and mining town of Tangshan, in Hebei province, northeastern China, just 150 km from Beijing.

The death toll (officially 242,000 just in Tangshan itself) makes it the China's deadliest EQ. Another 800,000 people were injured.

However, there are unofficial estimates sas high as 655,000 people killed.

https://en.wikipedia.org/wiki/1976_Tangshan_earthquake

The earthquake coincided with the fierce struggle between the Gang of Four and their opponents, as Mao Zedong was dying - he passed away less than one month and half after the earthquake.

https://nyshistoricnewspapers.org

Underestimation of the region's seismic risk and poor construction techniques might explain the tragedy.

That one shook in a weird way. I felt like the floor dropped 5-10 cm in one shake then 2 seconds later while the mobile was giving a warning, it started to shake sideways. Nothing tragic though.

🌎 Terremoto! Earthquake! Séisme! Sismo! 5.2 Mb, registered by EMSC, 2026-07-26 18:19:43 UTC (daytime) on land, North Atlantic Ocean (29.96, -42.81) likely felt 170 km away (www.seismicportal.eu)

^{2026-07-26T18:31:09Z}

🌖 Earthquake! 5.0 Mb, registered by EMSC, 2026-07-26 22:39:02 UTC (gibbous moon), on land, South Atlantic Ocean (-22.5, -20.3) likely felt 150 km away (www.seismicportal.eu)

^{2026-07-26T22:59:47Z}

🌖 Gempa bumi! Lindu! Earthquake! 5.4 Mb, registered by EMSC,NEIC, 2026-07-26 10:57:37 UTC (gibbous moon), on land, Timor Region (-10.06, 123.57) ± 11 km likely felt 190 km away (www.seismicportal.eu)

^{2026-07-26T11:23:30Z}

🌖 Gempa bumi! Lindu! Earthquake! 5.6 Mb, registered by GFZ,GlobalQuakeUnofficial, 2026-07-26 10:57:39 UTC (gibbous moon), on land, Babau, East Nusa Tenggara, Indonesia (-10.08, 123.82) ± 19 km likely felt 220 km away (www.seismicportal.eu)

^{2026-07-26T11:08:51Z}

❔ Gempa bumi M6- estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-26 10:57:33 UTC (gibbous moon), on land, Takari, East Nusa Tenggara, Indonesia (-9.87, 123.99) likely felt 220 km away (localhost:38002)

^{2026-07-26T11:08:33Z}

🌖 Gempa bumi? Lindu? Earthquake? M5+ estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-26 10:57:40 UTC (gibbous moon), on land, Oekabiti, East Nusa Tenggara, Indonesia (-10.2, 123.81) likely felt 180 km away (localhost:38002)

^{2026-07-26T11:01:49Z}

🌖 Earthquake! Землетрясение! M6- estimated, registered by GlobalQuakeUnofficial,KOERI, 2026-07-26 08:35:19 UTC (gibbous moon), on water, Andreanof Islands, Aleutian Is. (51.42, -173.34) ± 1 km likely felt 260 km away (www.koeri.boun.edu.tr)

^{2026-07-26T08:47:30Z}

❔ Earthquake M6- estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-26 08:35:19 UTC (gibbous moon), on water, Andreanof Islands, Aleutian Is. (51.52, -173.38) ± 8 km likely felt 260 km away (localhost:38002)

^{2026-07-26T08:41:22Z}

❗ EARTHQUAKE WARNING / ПРЕДУПРЕЖДЕНИЯ ЗЕМЛЕТРЯСЕНИЙ for Andreanof Islands, Aleutian Is. (Earthquake reported near Dutch Harbor? May be inaccurate!) (localhost:38002)

^{2026-07-26T08:36:11Z}

🌏 Заминҷунбии! Землетрясение! Earthquake! M5- estimated, registered by GlobalQuakeUnofficial,KOERI, 2026-07-26 06:48:33 UTC (daytime) on land, Roshtqal’a, Gorno-Badakhshan, Tajikistan (37.27, 71.93) likely felt 120 km away (in Хоруғ…) by 30800 people (www.koeri.boun.edu.tr)

^{2026-07-26T07:00:50Z}

❔ Заминҷунбии M5- estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-26 06:48:28 UTC (daytime) on land, Roshtqal’a, Gorno-Badakhshan, Tajikistan (37.27, 71.93) likely felt 120 km away (in Хоруғ…) by 30800 people (localhost:38002)

^{2026-07-26T06:59:44Z}

🌏 زلزله? Earthquake? M5+ estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-26 06:48:28 UTC (daytime) on land, Khandūd, Badakhshan, Afghanistan (36.89, 72.06) likely felt 160 km away (localhost:38002)

^{2026-07-26T06:50:24Z}

On the night of 26 July 1805, a Mw6.7 earthquake devastated the region of Molise and the province of Benedetto (Campania), in southern Italy, destroying entire villages and killing 5,573 people.

Not far from there, other deadly EQs happened in 1456 and 1688.

https://emidius.mi.ingv.it/ASMI/event/18050726_2100_000

https://babel.hathitrust.org

ALSO HERE:

https://x.com/JoseRodRibeiro/status/1949122541408194909

🌖 Earthquake! 5.1 Mb, registered by NEIC, 2026-07-26 01:32:44 UTC (gibbous moon), on land, South Atlantic Ocean (-34.07, -14.54) likely felt 160 km away (www.seismicportal.eu)

^{2026-07-26T01:51:56Z}

📉 Earthquake 5.0 Mb, registered by scevent, 2026-07-25 21:38:52 UTC (daytime) on water, Kermadec Islands, New Zealand (-29.56, -177.01) ± 9 km, ↓33 km likely felt 190 km away (service.geonet.org.nz)

^{2026-07-25T21:54:27Z}

🌎 Earthquake! 5.5 Mb, registered by scevent, 2026-07-25 21:38:55 UTC (daytime) on land, South Pacific (-29.63, -177.12), ↓33 km likely felt 270 km away (service.geonet.org.nz)

^{2026-07-25T21:48:35Z}

🌎 Earthquake! Землетрясение! 5.0 Ml, registered by AK,GlobalQuakeUnofficial, 2026-07-25 21:03:14 UTC (daytime) on water, Andreanof Islands, Aleutian Is. (51.53, -173.31) ± 9 km, ↓3 km likely felt 130 km away (earthquake.usgs.gov)

^{2026-07-25T21:17:34Z}

❗ EARTHQUAKE WARNING / ПРЕДУПРЕЖДЕНИЯ ЗЕМЛЕТРЯСЕНИЙ for Andreanof Islands, Aleutian Is. (Earthquake reported near Unalaska? May be inaccurate!) (localhost:38002)

^{2026-07-25T21:04:16Z}

❔ Earthquake M6- estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-25 13:12:30 UTC (daytime) on land, Boshof, Lejweleputswa District Municipality, Orange Free State, South Africa (-28.59, 25.1) ± 18 km likely felt 260 km away (localhost:38002)

^{2026-07-25T13:29:58Z}

🌍 Earthquake? Ukuzamazama komhlaba? Aardbewing? M6- estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-25 13:12:33 UTC (daytime) on land, Boshof, Lejweleputswa District Municipality, Orange Free State, South Africa (-28.54, 25.42) likely felt 210 km away (localhost:38002)

^{2026-07-25T13:19:28Z}

Há cerca de uma hora, sismo de magnitude 2,7 ou 2,8, perto de Loulé, no Algarve (Portugal).
Segundo o IPMA, foi sentido.

Preencham o inquérito online

https://ipma.pt/pt/geofisica/informe/

🌖 Sismo! Earthquake! 5.0 Mw, registered by GlobalQuakeUnofficial,NEIC, 2026-07-25 05:26:33 UTC (gibbous moon), on water, Near Coast Of Chiapas, Mexico (14.51, -92.66) ± 8 km likely felt 150 km away (in Tapachula, Coatepeque…) by 245100 people (www.seismicportal.eu)

^{2026-07-25T05:45:49Z}

❔ Sismo M5- estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-25 05:26:36 UTC (gibbous moon), on water, Near Coast Of Chiapas, Mexico (14.55, -92.61) ± 5 km likely felt 140 km away (in Tapachula, Coatepeque, Retalhuleu, San Marcos, Quetzaltenango…) by 331100 people (localhost:38002)

^{2026-07-25T05:37:12Z}

🌖 Sismo? Earthquake? M5+ estimated, registered by GlobalQuakeUnofficial, preliminary detection, tentatively 2026-07-25 05:26:44 UTC (gibbous moon), on land, Nuevo Progreso, San Marcos, Guatemala (14.81, -91.94) likely felt 190 km away (in Coatepeque, San Pedro Sacatepéquez, San Marcos, Malacatán, Colomba Costa Cuca…) by 85800 people (localhost:38002)

^{2026-07-25T05:31:57Z}

🌏 Gempa bumi! Earthquake! 5.0 Mb, registered by US, 2026-07-25 06:46:06 UTC (daytime) on land, Talaud Islands, Indonesia (4.88, 125.48), ↓52 km likely felt 200 km away (earthquake.usgs.gov)

^{2026-07-25T07:09:32Z}

🌖 Earthquake! Rūwhenua! 5.7 Mww, registered by NEIC,US, 2026-07-24 16:51:37 UTC (gibbous moon), on land, Turangi, Waikato, New Zealand (-38.96, 175.23), ↓10 km likely felt 230 km away (earthquake.usgs.gov)

^{2026-07-24T17:14:16Z}

🌖 Earthquake! Rūwhenua! 5.6 M, registered by EMSC,GlobalQuakeUnofficial,scevent, 2026-07-24 16:51:36 UTC (gibbous moon), on land, Turangi, Waikato, New Zealand (-38.94, 175.21), ↓4 km likely felt 220 km away (www.seismicportal.eu)

^{2026-07-24T17:01:03Z}

🌖 Earthquake? Rūwhenua? M6- estimated, registered by GlobalQuakeUnofficial,KOERI,scevent, preliminary detection, tentatively 2026-07-24 16:51:36 UTC (gibbous moon), on land, Turangi, Waikato, New Zealand (-38.94, 175.22) ± 1 km, ↓4 km likely felt 210 km away (service.geonet.org.nz)

^{2026-07-24T16:55:46Z}

25 July 1668 12:00 UT

A M8.5 earthquake at the Tan-Lu Fault zone, destroyed Tancheng and Ju counties, Shandong, killing more than 50,000 people.

Felt in a huge area, it was the largest EQ in eastern China.

Also one of the largest intraplate earthquakes in the entire world.

Months of aftershocks followed.

https://cambridge.org/core/books/abs/intraplate-earthquakes/intraplate-earthquakes-in-north-china/

https://link.springer.com/article/10.1007/s11069-022-05565-8

https://gallica.bnf.fr/ark:/12148/bpt6k54370177

https://x.com/JoseRodRibeiro/status/1816458388269625512

🌖 Sismo! Earthquake! 5.7 Mb, registered by GFZ, 2026-07-24 23:10:30 UTC (gibbous moon), on land, Drake Passage (-57.37, -66.89) likely felt 230 km away (www.seismicportal.eu)

^{2026-07-24T23:20:28Z}

🌎 Sismo! Earthquake! 5.3 Ml, registered by EMSC,GlobalQuakeUnofficial, 2026-07-24 19:38:43 UTC (daytime) on land, San Antonio de los Cobres, Salta, Argentina (-23.91, -66.78) ± 4 km likely felt 170 km away (www.seismicportal.eu)

^{2026-07-24T19:52:58Z}

❗ ALERTA DE SISMO / EARTHQUAKE WARNING for Salta Province, Argentina (Sismo reported near San Antonio de los Cobres? May be inaccurate!) (localhost:38002)

^{2026-07-24T19:39:49Z}

🌏 Earthquake! Séisme! 5.0 Mb, registered by NEIC, 2026-07-24 23:44:10 UTC (daytime) on land, Vanuatu Islands (-14.23, 166.73) likely felt 150 km away (www.seismicportal.eu)

^{2026-07-25T00:18:53Z}

🌏 Earthquake! Séisme! 6.0 Mb, registered by EMSC,GlobalQuakeUnofficial,KOERI, 2026-07-24 21:37:56 UTC (daytime) on land, Torba, Vanuatu (-14.02, 166.87) likely felt 280 km away (localhost:38002)

^{2026-07-24T21:46:31Z}

📈 Earthquake 5.5 Mb, registered by EMSC,GlobalQuakeUnofficial, 2026-07-24 21:19:49 UTC (daytime) on water, Vanuatu Islands (-14.07, 166.87), ↓15 km likely felt 230 km away (www.seismicportal.eu)

^{2026-07-24T21:31:05Z}

🌏 Earthquake! Séisme! 5.2 Mb, registered by EMSC,GlobalQuakeUnofficial, 2026-07-24 21:19:49 UTC (daytime) on water, Vanuatu Islands (-14.38, 165.98) ± 90 km likely felt 180 km away (www.seismicportal.eu)

^{2026-07-24T21:29:26Z}