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Peru · Alerts and sirens

How are emergency alerts sent in Peru? SISMATE and SASPe

Peru alerts phones by cell broadcast (SISMATE, no app needed) and sounds SASPe sirens in 114 coastal districts for earthquakes of magnitude 6.0 or more.

Updated 2026-10-20· 8 official sources

Short answer. Peru has two public warning systems. SISMATE sends cell-broadcast alerts to mobile phones when INDECI determines that a disaster is probable or confirmed; it was created by Law 30472 of 2016 and needs no app 24. SASPe sirens sound for earthquakes of magnitude 6.0 or greater in 114 coastal districts 1. Tsunami warnings come from the Navy and are relayed by INDECI 6.

What is SISMATE?

SISMATE (Sistema de Mensajería de Alerta Temprana de Emergencias) is Peru's phone alert system. It was created by Law 30472 of 2016 4, built by the Ministry of Transport and Communications (MTC) and is operated by INDECI 2.

  • What you see: a text alert with a continuous sound, the screen lighting up and vibration, overriding the phone's other functions 2.
  • When it is sent: only when INDECI determines the probability or confirmation of a disaster: earthquake, tsunami, flood, huayco (mudflow) or landslide 2.
  • Who receives it: active mobile lines with Cell Broadcast enabled, within operator coverage 2.
  • Testing: a national test on 6 May 2022 aimed to reach about 22.5 million people 3.

No app is needed for SISMATE 27.

What is SASPe?

SASPe (Sistema de Alerta Sísmica Peruano) is a network of electronic sirens run by INDECI and the Geophysical Institute of Peru (IGP) 17.

Feature Detail
Trigger Earthquakes of magnitude 6.0 or greater detected by the IGP's network of 106 accelerometers
Coverage 114 coastal districts in 10 departments plus Callao, about 1,541,517 people; most sirens are in Lima and Callao
Hazard Earthquakes only, in this first phase
Activation BGAN satellite, VHF radio, EWBS (digital TV) and GPRS

Source: INDECI 1.

What should I do when the SASPe siren sounds?

  • In the street: move to an external safe zone, away from objects that could fall 1.
  • Indoors: if you cannot evacuate, shelter in your internal safe zone and evacuate when the shaking stops 1.
  • Then: go to the meeting point nearest the sirens 1.

See public shelters and safe zones in Peru and our earthquake preparedness guide.

How do tsunami warnings work?

Tsunami warnings are issued by the Navy's hydrography directorate (DIHIDRONAV) and relayed by INDECI's National Emergency Operations Centre 6. INDECI uses two levels: "Una alerta es la probabilidad de ocurrencia del evento; mientras que una alarma, se refiere a la inminencia del fenómeno" 6. In other words, an alerta means a tsunami is possible, an alarma means it is imminent. Safe zones for tsunamis are high ground. Our tsunami guide explains what to do.

What is Línea 119?

A free MTC voice mailbox for disasters, available 24 hours 5:

  1. If you are in the affected area, dial 119, option 1 and record a message.
  2. Relatives dial 119, option 2, then your number, to listen to it. From a landline, include the area code.

Is there an official alert app?

SISMATE needs no app. The IGP publishes an official Android app, "IGP", to check its latest seismic and volcanic alerts 8. INDECI has no public-alert app 28. A battery or hand-crank radio is a useful backup: see our emergency radio guide.

Frequently asked questions

What is the difference between SASPe and SISMATE?

SASPe is a siren network on the coast, triggered automatically for earthquakes of magnitude 6.0 or more 1. SISMATE is a phone alert sent by INDECI for several hazards 27.

Will SASPe warn me of a tsunami?

Not in its first phase, which covers earthquakes only 1. Tsunami alerts and alarms come through INDECI and DIHIDRONAV 6.

Why did I not receive a SISMATE alert?

Only active lines with Cell Broadcast enabled and within operator coverage receive it 2. Check your phone's emergency alert settings.

Does the siren sound inland?

SASPe covers 114 coastal districts in 10 departments plus Callao 1.

Sources

  1. Instituto Nacional de Defensa Civil (INDECI) — Sistema de Alerta Sísmica Peruano - SASPe — https://www.gob.pe/institucion/indeci/campa%C3%B1as/4943-sistema-de-alerta-sismica-peruano-saspe (accessed 2026-10-20)
  2. Ministerio de Transportes y Comunicaciones (MTC) — Sismate: La alerta temprana de sismos y desastres naturales implementada por MTC será operada por el Indeci — https://www.gob.pe/institucion/mtc/noticias/574558-sismate-la-alerta-temprana-de-sismos-y-desastres-naturales-implementada-por-mtc-sera-operada-por-el-indeci (accessed 2026-10-20)
  3. Ministerio de Transportes y Comunicaciones (MTC) — MTC realizará este viernes prueba nacional del sistema de alerta temprana ante desastres — https://www.gob.pe/institucion/mtc/noticias/604317-mtc-realizara-este-viernes-prueba-nacional-del-sistema-de-alerta-temprana-ante-desastres (accessed 2026-10-20)
  4. Ministerio de Transportes y Comunicaciones (MTC) — Ley N.° 30472 - Ley que dispone la creación, implementación, operación y mantenimiento del Sistema de Mensajería de Alerta Temprana de Emergencias (SISMATE) — https://www.gob.pe/institucion/mtc/normas-legales/9854-30472 (accessed 2026-10-20)
  5. Ministerio de Transportes y Comunicaciones (MTC) — MTC recuerda a la ciudadanía el uso de la Línea 119 ante sismos y otras emergencias — https://www.gob.pe/institucion/mtc/noticias/1427554-mtc-recuerda-a-la-ciudadania-el-uso-de-la-linea-119-ante-sismos-y-otras-emergencias (accessed 2026-10-20)
  6. Instituto Nacional de Defensa Civil (INDECI) — INDECI brinda recomendaciones ante alerta de tsunami para el litoral peruano — https://www.gob.pe/institucion/indeci/noticias/1217539-indeci-brinda-recomendaciones-ante-alerta-de-tsunami-para-el-litoral-peruano (accessed 2026-10-20)
  7. Municipalidad Distrital de La Punta — ¿Sabes la diferencia entre SASPe y Sismate? — https://www.gob.pe/institucion/munilapunta/noticias/1230001-sabes-la-diferencia-entre-saspe-y-sismate (accessed 2026-10-20)
  8. Instituto Geofísico del Perú (IGP) — Revisar las últimas alertas del Instituto Geofísico del Perú desde tu celular — https://www.gob.pe/71443-revisar-las-ultimas-alertas-del-instituto-geofisico-del-peru-desde-tu-celular (accessed 2026-10-20)

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Sources

  1. Instituto Nacional de Defensa Civil (INDECI) · Sistema de Alerta Sísmica Peruano - SASPe checked 2026-10-20
  2. Ministerio de Transportes y Comunicaciones (MTC) · Sismate: La alerta temprana de sismos y desastres naturales implementada por MTC será operada por el Indeci checked 2026-10-20
  3. Ministerio de Transportes y Comunicaciones (MTC) · MTC realizará este viernes prueba nacional del sistema de alerta temprana ante desastres checked 2026-10-20
  4. Ministerio de Transportes y Comunicaciones (MTC) · Ley N.° 30472 - Ley que dispone la creación, implementación, operación y mantenimiento del Sistema de Mensajería de Alerta Temprana de Emergencias (SISMATE) checked 2026-10-20
  5. Ministerio de Transportes y Comunicaciones (MTC) · MTC recuerda a la ciudadanía el uso de la Línea 119 ante sismos y otras emergencias checked 2026-10-20
  6. Instituto Nacional de Defensa Civil (INDECI) · INDECI brinda recomendaciones ante alerta de tsunami para el litoral peruano checked 2026-10-20
  7. Municipalidad Distrital de La Punta · ¿Sabes la diferencia entre SASPe y Sismate? checked 2026-10-20
  8. Instituto Geofísico del Perú (IGP) · Revisar las últimas alertas del Instituto Geofísico del Perú desde tu celular checked 2026-10-20

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