Seismic hazard in Magdalena
Aa, Av, Ae and Ad for its 30 municipalities under the NSR-10.
Photo: Sven Mieke / Unsplash
According to Appendix A-4 of the NSR-10, of the 30 municipalities of Magdalena, 1 in the intermediate hazard zone and 29 in the low hazard zone. The capital, Santa Marta, has Aa = 0.15 and Av = 0.10, intermediate hazard. Across the department, Aa ranges from 0.10 to 0.15 and Av from 0.10 to 0.10.
- Municipalities
- 30
- Capital
- Santa Marta
- Aa / Av of the capital
- 0.15 / 0.10
- High hazard
- 0
- Intermediate hazard
- 1
- Low hazard
- 29
Municipalities of Magdalena
Values from Appendix A-4 of the NSR-10. Tap a municipality to open its design spectrum.
| Municipality | Code | Aa | Av | Zone | Ae | Ad |
|---|---|---|---|---|---|---|
| Santa Marta | 47001 | 0.15 | 0.10 | Intermediate | 0.10 | 0.04 |
| Algarrobo | 47030 | 0.10 | 0.10 | Low | 0.05 | 0.02 |
| Aracataca | 47053 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Ariguaní | 47058 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Cerro San Antonio | 47161 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Chivolo | 47170 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Ciénaga | 47189 | 0.10 | 0.10 | Low | 0.06 | 0.02 |
| Concordia | 47205 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| El Banco | 47245 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| El Piñon | 47258 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| El Reten | 47268 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Fundación | 47288 | 0.10 | 0.10 | Low | 0.05 | 0.02 |
| Guamal | 47318 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Nueva Granada | 47460 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Pedraza | 47541 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Pijino del Carmen | 47545 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Pivijay | 47551 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Plato | 47555 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Puebloviejo | 47570 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Remolino | 47605 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Sabanas de San Ángel | 47660 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Salamina | 47675 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| San Sebastián de Buenavista | 47692 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| San Zenón | 47703 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Santa Ana | 47707 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Santa Bárbara de Pinto | 47720 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Sitionuevo | 47745 | 0.10 | 0.10 | Low | 0.05 | 0.02 |
| Tenerife | 47798 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Zapayán | 47960 | 0.10 | 0.10 | Low | 0.04 | 0.02 |
| Zona Bananera | 47980 | 0.10 | 0.10 | Low | 0.08 | 0.02 |
What does it mean for design in Magdalena?
Municipalities in the intermediate hazard zone. In reinforced concrete, the intermediate hazard zone no longer allows minimum dissipation (DMI): the structure is designed with moderate (DMO) or special (DES) energy dissipation capacity, with more reinforcement detailing requirements.
Municipalities in the low hazard zone. In reinforced concrete, the NSR-10 accepts structures with minimum energy dissipation capacity (DMI) in the low hazard zone, with the simplest detailing, and for occupancy groups I and II it limits the irregularity checks to a few types (A.3.3.6).
The municipality's value is only the starting point: the soil profile sets the coefficients Fa and Fv, and the occupancy group sets the importance factor. Work out the full spectrum with the NSR-10 design spectrum, or look up another municipality in the seismic hazard tool.
What the code requires in Santa Marta, with each city's soil and environment, is on its structural engineering page.
Frequently asked questions
What seismic hazard zone is Santa Marta in?
In the intermediate seismic hazard zone: Aa = 0.15 and Av = 0.10, according to Appendix A-4 of the NSR-10.
Which municipalities of Magdalena have the highest seismic hazard?
The department's highest coefficient, 0.15, is found in Santa Marta.
How many municipalities of Magdalena are in each seismic hazard zone?
Of 30 municipalities, 0 are in the high hazard zone, 1 in the intermediate zone and 29 in the low zone (NSR-10, Appendix A-4).
Other departments
- Amazonas11 municipalities
- Antioquia125 municipalities
- Arauca7 municipalities
- Atlántico23 municipalities
- Bogotá D. C.1 municipality
- Bolívar45 municipalities
- Boyacá123 municipalities
- Caldas27 municipalities
- Caquetá16 municipalities
- Casanare19 municipalities
- Cauca41 municipalities
- Cesar25 municipalities
- Chocó31 municipalities
- Córdoba28 municipalities
- Cundinamarca116 municipalities
- Guainía9 municipalities
- Guaviare4 municipalities
- Huila37 municipalities
- La Guajira15 municipalities
- Meta29 municipalities
- Nariño63 municipalities
- Norte de Santander40 municipalities
- Putumayo13 municipalities
- Quindío12 municipalities
- Risaralda14 municipalities
- San Andrés y Providencia2 municipalities
- Santander87 municipalities
- Sucre25 municipalities
- Tolima47 municipalities
- Valle del Cauca42 municipalities
- Vaupés6 municipalities
- Vichada4 municipalities
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