Earthquake with magnitude of ML 1.0 on date 18-02-2024 and time 02:18:06 (Italy) in region 3 km SE Macugnaga (VB)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Macugnaga (VB), on

  • 18-02-2024 01:18:06 (UTC)
  • 18-02-2024 02:18:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.9480, 7.9980 at 12 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Macugnaga VB 3 557 557
Carcoforo VC 6 78 635
Ceppo Morelli VB 6 321 956
Rima San Giuseppe VC 9 59 1015
Vanzone con San Carlo VB 10 407 1422
Rimasco VC 11 106 1528
Alagna Valsesia VC 11 408 1936
Bannio Anzino VB 12 475 2411
Riva Valdobbia VC 13 258 2669
Fobello VC 14 196 2865
Cervatto VC 15 47 2912
Calasca-Castiglione VB 15 649 3561
Mollia VC 15 95 3656
Rimella VC 15 134 3790
Antrona Schieranco VB 16 428 4218
Boccioleto VC 16 205 4423
Rossa VC 16 180 4603
Campertogno VC 17 237 4840
Balmuccia VC 18 112 4952
Gressoney-La-Trinité AO 19 303 5255
Cravagliana VC 19 251 5506
Scopa VC 20 381 5887
Vocca VC 20 174 6061
Rassa VC 20 71 6132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km W of Varese (80799 inhabitants)
70 Km W of Gallarate (53343 inhabitants)
74 Km NW of Novara (104380 inhabitants)
76 Km W of Busto Arsizio (83106 inhabitants)
82 Km W of Legnano (60262 inhabitants)
86 Km W of Como (84495 inhabitants)
93 Km W of Rho (50434 inhabitants)
97 Km NW of Vigevano (63310 inhabitants)
100 Km N of Torino (890529 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 1.0 2024-02-18
01:18:06
45.9483 7.9985 12 2024-02-18
01:23:29
Sala Sismica INGV-Roma 125346831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-18 01:18:06 ± 0.19
Latitude 45.9483 ± 0.0090
Longitude 7.9985 ± 0.0181
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125346831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1344
Semi-minor axis of confidence ellipse (meter) 611
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 1340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.10522
Epicentral distance of station farthest from the epicenter (degree) 0.77611
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 125346831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-18 01:23:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.LSD.HHZ. 2024-02-18T01:18:30.69 0.6 undecidable manual S 231 86.1471 91 -0.96 32
GU.CIRO.HHE. 2024-02-18T01:18:21.71 0.6 undecidable manual S 221 50.8158 92 -0.51 41
GU.LSD.HHZ. 2024-02-18T01:18:21.31 0.6 positive manual P 231 86.1471 91 0.42 41
CH.DIX.HHZ. 2024-02-18T01:18:20.63 0.6 undecidable manual S 288 47.7189 92 -0.77 38
4P.IT02A.HHE. 2024-02-18T01:18:20.36 0.6 undecidable manual S 142 45.7209 92 -0.5 41
IV.MRGE.HHZ. 2024-02-18T01:18:19.81 0.1 undecidable manual P 255 75.0693 91 0.63 80
IV.ORO.EHE. 2024-02-18T01:18:17.52 0.6 undecidable manual S 182 35.742 93 -0.66 39
CH.DIX.HHZ. 2024-02-18T01:18:15.04 0.1 undecidable manual P 288 47.7189 92 0.07 95
GU.TRAV.HHZ. 2024-02-18T01:18:15.82 0.1 positive manual P 202 52.2033 92 0.17 93
GU.CIRO.HHE. 2024-02-18T01:18:15.56 0.1 undecidable manual P 221 50.8158 92 0.12 94
4P.IT02A.HHE. 2024-02-18T01:18:14.75 0.1 undecidable manual P 142 45.7209 92 0.09 95
IV.ORO.EHE. 2024-02-18T01:18:13.19 0.1 undecidable manual P 182 35.742 93 0.08 97
GU.SATI.HHZ. 2024-02-18T01:18:12.04 0.6 undecidable manual S 231 12.876 117 -0.16 49
CH.MMK.HHZ. 2024-02-18T01:18:11.27 0.6 undecidable manual S 347 11.6772 122 -0.64 43
GU.SATI.HHZ. 2024-02-18T01:18:10.02 0.1 undecidable manual P 231 12.876 117 0.36 95
CH.MMK.HHZ. 2024-02-18T01:18:09.62 0.1 undecidable manual P 347 11.6772 122 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.MMK.HHE. ML:0.2 0.000016044179999999997 0.1296 AML other m 2024-02-18T01:18:11.56
CH.MMK.HHN. ML:0.3 0.000018352205 0.14 AML other m 2024-02-18T01:18:11.49
GU.SATI.HHE. ML:1.5 0.0003200074 0.08 AML other m 2024-02-18T01:18:12.12
GU.SATI.HHN. ML:1.2 0.0001494299 0.08 AML other m 2024-02-18T01:18:12.21
GU.SATI.HNE. ML:1.5 0.0003110949 0.08 AML other m 2024-02-18T01:18:12.12
GU.SATI.HNN. ML:1.2 0.00015932835000000001 0.0704 AML other m 2024-02-18T01:18:12.08
CH.DIX.HHE. ML:0.9 0.000021796525000000002 0.14 AML other m 2024-02-18T01:18:21.11
GU.TRAV.HHN. ML:0.8 0.0000156270435 0.1 AML other m 2024-02-18T01:18:16.09
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