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Instructions

What to do during a quake

1

Right now

Check that cabinets, shelves, and the TV are secured to the wall.

Keep a go-bag by the door: water, documents, first-aid kit, flashlight, charger.

Agree on a meeting point with your family and write it down.

2

During the shaking

Indoors — drop to the floor, take cover under a table, hold onto it.

Don't run for the elevator or step out onto a balcony.

Outdoors — move away from walls, shop windows, and power lines.

3

Afterward

Check yourself and your family, then shut off gas and water.

Leave via the stairs, wear shoes — there may be broken glass on the floor.

Expect aftershocks in the first hours and the following day.

ANLIK DEPREM does not predict earthquakes — scientifically, earthquakes cannot be predicted.

About the data and scale

Data sources

USGS (Earthquake Hazards Program) is the primary global source, cache refreshes every 60 seconds. EMSC-CSEM provides fast alerts for Europe and the Mediterranean. AFAD and Kandilli Rasathanesi (Boğaziçi University) are priority sources for Turkey — their denser station network gives more accurate magnitude, depth, and nearest-city data for Turkish quakes than the global sources.

Danger scale

The map dot color and magnitude badge in the feed depend on both magnitude and depth: ESI = magnitude − k·log10(depth). The deeper a quake, the less it's felt at the surface at the same magnitude.

  • Not felt
  • Weak
  • Light
  • Strong
  • Catastrophic

Distance and nearest city

Distance is measured from your geolocation (or its IP approximation) to the epicenter. The place name comes from the source data: USGS usually names the nearest city, EMSC gives a broader region.

How the highlighting in the interface works

Color is the fastest signal in the interface — it shows the danger level without making you read numbers. Here's what each highlighted cell means.

4.3

Magnitude badge

The colored square with a number to the left of every row in the feed and on the quake page. Its color depends not just on magnitude but on the ESI index (magnitude adjusted for depth) — so two quakes with the same magnitude but different depth can show different colors.

STRONG

The "Danger" column

The text label in the feed table (Not felt / Weak / Noticeable / Strong / Catastrophic). It uses the same ESI and the same 5-level scale as the magnitude badge — just repeating the same color as text so the table is easier to scan.

Dots on the map

Every dot on the Map is colored on the same ESI scale, and its size grows with magnitude. The full legend opens from the "Danger level" button in the bottom-left corner of the map.

13 km

Depth chevron icon

The chevron marks next to the "Depth" field on the quake page: their count shows how close the rupture is to the surface — 1 chevron (up to 70 km, shallow, felt more strongly), 2 (70–300 km) or 3 (over 300 km, deep, barely felt at the surface). The chevrons' color is the overall danger color (ESI), the same one used on the magnitude badge.

206 km620 km8790 km

Distance from you

The kilometer figure in the "Distance" column is highlighted independently of the quake's magnitude: under 300 km — red, with a "Nearby" badge next to it; 300–1000 km — orange; over 1000 km — green. It's purely geographic proximity, not a measure of the quake's own danger.

Nearby