BBC World Service ·

Witness History

Thursday 29 October 2026, 18:50 – 19:00 UK time

Mexico's pioneering earthquake warning system began in 1991 after the devastating 1985 quake. Juan Manuel Espinosa Aranda explains how it was created.

Upcoming showings

Other scheduled episodes, repeats and reruns across all channels. All times are UK time.

BBC World Service

Witness History

Friday 23 October 2026, 12:50 – 13:00

→

BBC World Service

Witness History

Friday 23 October 2026, 18:50 – 19:00

→

BBC World Service

Witness History

Saturday 24 October 2026, 03:50 – 04:00

→

BBC Radio 4 FM

Witness History

Sunday 25 October 2026, 08:48 – 08:58

→

BBC Radio 4 LW

Witness History

Sunday 25 October 2026, 08:48 – 08:58

→

BBC Radio 4 FM

Witness History

Sunday 25 October 2026, 17:00 – 17:10

→

BBC Radio 4 LW

Witness History

Sunday 25 October 2026, 17:00 – 17:10

→

BBC World Service

Witness History

Monday 26 October 2026, 08:50 – 09:00

→

BBC World Service

Witness History

Monday 26 October 2026, 12:50 – 13:00

→

BBC World Service

Witness History

Monday 26 October 2026, 18:50 – 19:00

→

BBC World Service

Witness History

Tuesday 27 October 2026, 03:50 – 04:00

→

BBC World Service

Witness History

Tuesday 27 October 2026, 08:50 – 09:00

→

BBC World Service

Witness History

Tuesday 27 October 2026, 12:50 – 13:00

→

BBC World Service

Witness History

Tuesday 27 October 2026, 18:50 – 19:00

→

BBC World Service

Witness History

Wednesday 28 October 2026, 03:50 – 04:00

→

BBC World Service

Witness History

Wednesday 28 October 2026, 08:50 – 09:00

→

BBC World Service

Witness History

Wednesday 28 October 2026, 12:50 – 13:00

→

BBC World Service

Witness History

Wednesday 28 October 2026, 18:50 – 19:00

→

BBC World Service

Witness History

Thursday 29 October 2026, 03:50 – 04:00

→

BBC World Service

Witness History

Thursday 29 October 2026, 08:50 – 09:00

→