All earthquakes
1.3
very light
EARTHQUAKE DETAILS

1 km East of Nago-Torbole

63 months ago · 3 Jul, 01:35

A very light earthquake, probably not felt by people. At this depth the shaking is felt, but rarely causes damage.

Stronger than 55% of Italian events in the past year

Where

1 km East of Nago-TorboleEarthquakes in the province of TrentoEarthquakes in Trentino-Alto Adige

How far away could it be felt?

A quake this small is usually not felt by people: only seismographs record it.

Statistical estimate from the Italian intensity attenuation model (INGV): actual perception depends on geology, buildings and depth. Very shallow events can be felt locally even below the threshold.

Earthquake map

21 events
Magnitude:lightweakmoderatestrong

The energy released

How much energy this quake unleashed, translated into everyday comparisons.

1.3kgof TNT equivalent
Less than the energy of a lightning bolt
M3
A magnitude 3 earthquake releases ×355 its energy
M0this quakeM2

Each extra magnitude unit releases about 32 times more energy: an M5 is not "a bit stronger" than an M4 — it is a different league.

Energy estimated with the standard Gutenberg–Richter relation; an average lightning bolt ≈ 1 billion joules. Indicative values.

The race of the seismic waves

Two waves set off from the hypocentre: the faster P wave arrives first with a sharp jolt; the S wave carries the actual shaking.

P waves — the first sharp jolt (~6 km/s)S waves — the strongest shaking (~3.5 km/s)
t ≈ 19 s

Animation sped up ~4× compared to reality.

  • Trento
    27 km from the epicentre
    first tremor in ~5 s
    main shaking in ~9 s
  • Verona
    46 km from the epicentre
    first tremor in ~8 s
    main shaking in ~14 s
  • Vicenza
    60 km from the epicentre
    first tremor in ~10 s
    main shaking in ~18 s
  • Brescia
    63 km from the epicentre
    first tremor in ~11 s
    main shaking in ~19 s

Theoretical times with average crustal speeds: real values vary with geology. The gap between P and S waves is what earthquake early-warning systems rely on.

How deep it was born

17 km
medium depth
2 times the height of Mount Everest

At this depth the shaking is felt, but rarely causes damage.

deeper than the area average (~7 km)

For the same magnitude, a shallow earthquake is felt much more than a deep one: the energy starts closer to the surface.

What kind of quake is this?

Aftershock

It is an aftershock: it follows a stronger quake (M2.3, 64 months ago) in the same area. Aftershocks are normal after an earthquake and tend to fade over time.

2.3
The mainshock
1 km North-East of Volano
64 months ago · 8 Jun, 01:57
Activity in the area right now (30 km radius)
0
last 24 hours
2
last 7 days
12
last 30 days
8 before12 after
this quake
Strongest of the sequence2.3

How often does it happen here?

about every ~32 days

Within 50 km of this epicentre, a magnitude ≥ 2 earthquake has occurred on average this often: 134 events in the last 12 years of the INGV catalogue.

An average computed on the recent past: it tells how used this area is to shaking, not when the next quake will come — earthquakes cannot be predicted.

The great earthquakes in this area's history

Almost a thousand years of catalogues: the strongest documented events within ~50 km.

18915.9
Valle d'Illasi earthquake
7 June 1891 · 37 km from here
IXDestructive: many buildings partly or fully collapse.
12225.7
Bresciano-Veronese earthquake
25 December 1222 · 41 km from here
19015.4
Garda occidentale earthquake
30 October 1901 · 43 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19325.2
Garda orientale earthquake
19 February 1932 · 27 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Monte Baldo

The epicentre lies about 2 km from Monte Baldo, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 6.7between 3 and 9 km deep

Faults are mapped to build better and understand the territory: knowing them says nothing about when an earthquake will occur, which remains unpredictable. Source: DISS 3.3 (INGV, CC BY 4.0).

Other quakes in the area

1.3
4 km South-West of Tenno
11 km North-West · 12 km
63 months ago
3 Jul, 02:48
1.2
3 km West of Gargnano
30 km West · 10 km
63 months ago
2 Jul, 16:16
2.0
3 km South-East of Brentonico
8 km South-East · 11 km
63 months ago
2 Jul, 07:23
1.0
5 km North-East of Gargnano
24 km West · 7 km
63 months ago
5 Jul, 11:56
0.8
4 km West of Malcesine
12 km South-West · 9 km
63 months ago
6 Jul, 05:39
1.1
7 km East of Bondone
20 km West · 12 km
63 months ago
27 Jun, 14:58
1.2
63 months ago
9 Jul, 03:01
0.9
2 km East of Nago-Torbole
1 km East · 15 km
63 months ago
23 Jun, 19:28
0.8
4 km East of Brentonico
8 km East · 16 km
63 months ago
23 Jun, 05:54
1.2
3 km South-West of Mori
3 km East · 16 km
62 months ago
13 Jul, 13:12

Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)

Estimates computed by Meteare on INGV data (Gutenberg–Richter relation; Italian macroseismic intensity attenuation model).

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