Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 27-03-2020 and time 20:51:16 (Italy) in region 8 km S Aisone (CN)

A magnitude ML 1.2 earthquake occured in region: 8 km S Aisone (CN), on

  • 27-03-2020 19:51:16 (UTC)
  • 27-03-2020 20:51:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2450, 7.2490 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Aisone CN 8 248 248
Demonte CN 9 2003 2251
Vinadio CN 9 644 2895
Entracque CN 12 774 3669
Valdieri CN 12 935 4604
Moiola CN 14 234 4838
Valloriate CN 15 109 4947
Gaiola CN 16 582 5529
Roaschia CN 17 107 5636
Rittana CN 17 109 5745
Sambuco CN 17 92 5837
Castelmagno CN 19 66 5903
Roccasparvera CN 19 741 6644
Monterosso Grana CN 19 505 7149
Pradleves CN 20 250 7399

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Cuneo (56081 inhabitants)
64 Km NW of Sanremo (54807 inhabitants)
91 Km SW of Moncalieri (57294 inhabitants)
98 Km SW of Torino (890529 inhabitants)
98 Km W of Savona (61345 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.2 2020-03-27
19:51:16		 44.2448 7.2492 10 2020-03-27
20:00:05		 Sala Sismica INGV-Roma 77626601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-27 19:51:16 ± 0.24
Latitude 44.2448 ± 0.0135
Longitude 7.2492 ± 0.0226
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77626601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2196
Semi-minor axis of confidence ellipse (meter) 772
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 2200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.75003
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 77626601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-27 20:00:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RRL.HHE. 2020-03-27T19:51:42.18 0.3 undecidable manual S 334 83.25 50 0.77 53
GU.BHB.HHZ. 2020-03-27T19:51:36.51 0.6 undecidable manual S 1 65.49 50 -0.16 44
GU.RRL.HHE. 2020-03-27T19:51:31.15 0.6 undecidable manual P 334 83.25 50 0.24 42
GU.BHB.HHZ. 2020-03-27T19:51:28.08 0.3 undecidable manual P 1 65.49 50 -0.09 67
IV.IMI.HHZ. 2020-03-27T19:51:27.83 0.3 undecidable manual P 126 63.2922 50 -0.01 69
GU.PZZ.HHZ. 2020-03-27T19:51:26.98 0.1 undecidable manual S 340 30.9468 50 -0.46 88
GU.GBOS.HHZ. 2020-03-27T19:51:25.59 0.1 undecidable manual P 90 46.9197 50 0.28 89
FR.SAOF.HHZ.00 2020-03-27T19:51:23.36 0.6 undecidable manual P 140 37.5291 50 -0.5 43
GU.PZZ.HHZ. 2020-03-27T19:51:22.79 0.1 undecidable manual P 340 30.9468 50 -0.05 96
GU.ENR.HHZ. 2020-03-27T19:51:22.52 0.1 undecidable manual S 98 13.7751 127 -0.03 99
GU.STV.HHZ. 2020-03-27T19:51:20.65 0.1 undecidable manual S 89 6.0939 150 -0.1 99
GU.ENR.HHZ. 2020-03-27T19:51:20.14 0.1 undecidable manual P 98 13.7751 127 0.12 98
GU.STV.HHZ. 2020-03-27T19:51:19.05 0.1 undecidable manual P 89 6.0939 150 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:1.3 0.00032598135 0.064 AML other m 2020-03-27T19:51:20.76
GU.STV.HHN. ML:1.3 0.0003363180999999999 0.1408 AML other m 2020-03-27T19:51:20.76
GU.ENR.HHE. ML:1.5 0.00033684375 0.064 AML other m 2020-03-27T19:51:22.75
GU.ENR.HHN. ML:1.7 0.0004785587 0.0768 AML other m 2020-03-27T19:51:22.68
GU.PZZ.HHE. ML:1.7 0.00023918270000000002 0.2048 AML other m 2020-03-27T19:51:27.32
GU.PZZ.HHN. ML:1.5 0.0001425349 0.2176 AML other m 2020-03-27T19:51:27.40
FR.SAOF.HHE.00 ML:0.8 0.00002730208 0.064 AML other m 2020-03-27T19:51:29.16
FR.SAOF.HHN.00 ML:0.8 0.0000235680461 0.064 AML other m 2020-03-27T19:51:29.64
GU.GBOS.HHE. ML:1.0 0.0000250091055 1.3824 AML other m 2020-03-27T19:51:31.86
GU.GBOS.HHN. ML:1.0 0.000028816275000000002 0.256 AML other m 2020-03-27T19:51:32.06
IV.IMI.HHE. ML:1.2 0.000029571095 2.2016 AML other m 2020-03-27T19:51:36.06
IV.IMI.HHN. ML:1.3 0.0000339902185 1.2032 AML other m 2020-03-27T19:51:36.41
GU.BHB.HHE. ML:0.9 0.0000147541185 0.2816 AML other m 2020-03-27T19:51:37.27
GU.BHB.HHN. ML:1.0 0.00002031668 0.7552 AML other m 2020-03-27T19:51:37.04
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download