How to compare hazard layers around San Salvador

A map of past events, a hazard scenario and a building layer answer different questions. When researching a home’s surroundings in San Salvador, establish what each resource represents before combining its information.

Read the complete layer name

The MARN hazard observatory’s map catalogue brings together resources about different phenomena and territorial layers. Its references include AMSS buildings and material identified with a 2014 date. Retain the title, date, legend and source: an older outline does not establish a building’s present condition.

Before comparing colours, distinguish historical observations, scenarios and information intended for a particular period. Record the phenomenon being analysed. A location outside a drawn zone should not automatically be interpreted as free of hazard. Review coverage, scale and the meaning of the legend before explaining the result.

Turn the information into a local question

Locate the property using a checked reference and examine the surroundings rather than only the entrance point. If a layer represents a broad area, retain that scale of interpretation. Do not infer structural resistance, current accessibility or individual effects on a dwelling from it.

To prepare a visit, note the observation requiring confirmation and its exact source: for example, the relationship to a mapped area or a discrepancy between visible construction and historical imagery. That reference helps frame a technical enquiry when a specific assessment is needed. Keep the phenomenon’s date, map date and visit date separate. You can then update the observations without presenting a territorial layer as a diagnosis of the individual property or overlooking the limits of older source material.

A building for practising the distinction

The verified Terraes record represents a 27.43 m² footprint at 13.69903, -89.19134. The query on 22 September 2026 returned this Overture record, release 2026-08-19.0. This is footprint area; it does not identify an apartment or establish rights over the land. Use the example to recognise which object you are reading before applying the official query to your property.

Continue with the other local guide or the country hub. The methodology explains evidence concepts; its specific models do not automatically transfer to this case.