Americas / Peru · Environment

Two earthquakes shake southern Peru; magnitude 5.1 quake, no tsunami warning

Rank
Running: 32h
Updated: 4h ago
Momentum: -16%
Outlets: 8
Regions: 1
Countries: 5
Languages: 1

RPP Peru · Spanish 10 Oct, 18:45 UTC

The first outlet on the story

The only language so far · Spanish, 8 reports

Read at RPP

How it spread

Outlets, by hours since the first article

First outlet: RPP, 10 Oct, 18:45 UTC.
Second country: Argentina, with Infobae.
Fastest hour: +3 outlets from 11 Oct, 14:06 UTC.
Now: 8 outlets.

Where it travelled

The 5 countries whose press covered it, the later a country joined, the more it stands out. Open the live map

The regions

100%

Americas 8 outlets · 5 countries · 100%

First movers

RPP 10 Oct, 18:45 UTC
La República (PE) +19h 21m
Infobae +19h 41m
El Deber +20h 11m
El Nacional +20h 34m

Latest arrivals

El Comercio (EC) 11 Oct, 18:32 UTC
El Comercio 11 Oct, 15:57 UTC
Primicias 11 Oct, 15:57 UTC
El Nacional 11 Oct, 15:19 UTC
El Deber 11 Oct, 14:56 UTC

The chapters

This story continues an earlier wave: Magnitude 4.2 earthquake strikes Arequipa region in Peru, 8 to 10 Oct 2026, 4 outlets.

The figures

Coverage: 8 outlets in 5 countries. The article links are kept for good for every story that reaches the map. Of the 8 outlets, 8 private. A count of countries is not a count of independent press systems.
Countries by region: Americas 5: Argentina, Bolivia, Ecuador, Peru, Venezuela. The region a country’s press publishes from, as the feed list files it; the outlets that publish from no single country count as one country under International.
Languages: Spanish.
Timeline: Earliest article RPP, 10 Oct 2026, 18:45 UTC. First seen 10 Oct 2026, 19:30 UTC. Last seen 11 Oct 2026, 23:16 UTC. The earliest article is the earliest claimed publication time among the outlets Loudest reads, a claim rather than an observation and not a record of who broke the story (the data files call it the lead article); first seen is when Loudest first fetched an article of it, from which the running time counts.
Classification: Region Americas, Peru. Topic Environment. Hard news Judged hard news. On the map. Whether the story is hard news under the rule in the methodology, judged from its headlines by a model; a story judged outside the rule is left off the map and kept here. The region and country are where the story is about, not where it was covered.
Score: 0.82, as of now. One vote per general-press country and a smaller term for outlets, each counted from the moment it joined the story and fading on its own clock, so a late article does not renew the rest. A day in the archive keeps the score it was ranked by that day.
Chain: Continues Magnitude 4.2 earthquake strikes Arequipa region in Peru. A story continues another when it resembled it as it began, past that story’s own 48-hour box.
Day by day: Outlets and countries are the story’s whole life as of that midnight; the 24-hour columns are that day’s own coverage; the last column is the methodology version the day was measured under, and a day that spans a change of version shows the first and last, linked to the changelog that lists every version between. A day marked partial is one Loudest read only in part: fewer than 130 of its 144 ten-minute runs, or more than 30 minutes missed at its start or end.

Day Rank Score Outlets Countries 24h outlets 24h countries Method

11 Oct 2026 130 4.92 8 5 8 5 4.7

This record as JSON, CC BY 4.0.

How this was measured

This page describes measured coverage: which of the outlets Loudest reads carried the story, from how many countries and in how many languages, and when. It says nothing about whether the story is true, important or well reported.

Started 10 Oct, 19:30 UTC · Updated 11 Oct, 23:16 UTC

Covered by 8 outlets

Pin outlets you trust with ☆ and they come first in every story.

El Comercio Peru 11 Oct, 23:16 UTC
Sismo de magnitud 3.6 se registró esta tarde en Arequipa, informó el IGP
+1 more articleHide 1 more article
- Sismo de magnitud 5.1 se registró esta mañana en Arequipa, según el IGP 11 Oct, 15:57 UTC
El Comercio (EC) Ecuador 11 Oct, 18:32 UTC
Dos sismos sacuden el sur de Perú este domingo 11 de octubre de 2026
Primicias Ecuador 11 Oct, 15:57 UTC
Dos sismos sacuden Perú en poco más de dos horas este 11 de octubre; autoridades descartan tsunami
El Nacional Venezuela 11 Oct, 15:19 UTC
Sismo de magnitud 5,1 se registró en la costa sur de Perú seguido de otro movimiento telúrico en la ciudad de Ica
Infobae Argentina 11 Oct, 15:01 UTC
Sismo de magnitud 5,1 remece la costa sur de Perú, pero se descarta tsunami
+1 more articleHide 1 more article
- Sismo remece hoy el sur de Perú: el IGP reporta un temblor de magnitud 5,1 en Arequipa este 11 de octubre 11 Oct, 14:26 UTC
El Deber Bolivia 11 Oct, 14:56 UTC
Sismo de magnitud 5,1 remece la costa sur de Perú, pero se descarta tsunami
RPP Peru 11 Oct, 14:21 UTC
Un sismo de magnitud 5.1 remeció la región Arequipa esta mañana
+1 more articleHide 1 more article
- Un sismo de magnitud 3.5 remeció la región Arequipa esta tarde 10 Oct, 18:45 UTC
La República (PE) Peru 11 Oct, 14:06 UTC
Temblor en Arequipa: sismo de magnitud 5,1 remeció Camaná hoy, según el IGP