Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 08-01-2024 and time 04:37:04 (Italy) in region 6 km N Calvi dell'Umbria (TR)

A magnitude ML 1.7 earthquake occured in region: 6 km N Calvi dell'Umbria (TR), on

  • 08-01-2024 03:37:04 (UTC)
  • 08-01-2024 04:37:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4540, 12.5770 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Calvi dell'Umbria TR 6 1856 1856
Configni RI 6 633 2489
Otricoli TR 9 1869 4358
Stroncone TR 9 4917 9275
Narni TR 9 19785 29060
Vacone RI 9 256 29316
Montebuono RI 10 883 30199
Cottanello RI 10 563 30762
Tarano RI 11 1444 32206
Montasola RI 11 395 32601
Torri in Sabina RI 12 1256 33857
Magliano Sabina RI 13 3774 37631
Collevecchio RI 13 1577 39208
Terni TR 13 111501 150709
Casperia RI 15 1246 151955
Selci RI 15 1106 153061
Orte VT 16 8923 161984
Greccio RI 16 1558 163542
Contigliano RI 16 3783 167325
Gallese VT 17 2849 170174
Cantalupo in Sabina RI 17 1685 171859
Stimigliano RI 17 2328 174187
Forano RI 17 3179 177366
Roccantica RI 18 563 177929
Colli sul Velino RI 18 533 178462
Amelia TR 18 11897 190359
San Gemini TR 18 5018 195377
Penna in Teverina TR 19 1099 196476
Vasanello VT 19 4068 200544
Poggio Catino RI 20 1341 201885

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Terni (111501 inhabitants)
39 Km E of Viterbo (67173 inhabitants)
52 Km N of Guidonia Montecelio (88673 inhabitants)
57 Km S of Foligno (57155 inhabitants)
57 Km NW of Tivoli (56533 inhabitants)
63 Km N of Roma (2864731 inhabitants)
69 Km W of L'Aquila (69753 inhabitants)
74 Km S of Perugia (166134 inhabitants)
76 Km NE of Civitavecchia (52991 inhabitants)
81 Km NE of Fiumicino (78395 inhabitants)
87 Km N of Velletri (53303 inhabitants)
87 Km N of Pomezia (62966 inhabitants)
95 Km W of Teramo (54892 inhabitants)
96 Km N of Aprilia (73446 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 1.7 2024-01-08
03:37:04		 42.4535 12.5768 9 2024-01-08
03:52:15		 Sala Sismica INGV-Roma 124540811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-08 03:37:04 ± 0.11
Latitude 42.4535 ± 0.0045
Longitude 12.5768 ± 0.0098
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124540811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 831
Semi-minor axis of confidence ellipse (meter) 459
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 124540811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-08 03:52:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2024-01-08T03:37:35.13 3.0 undecidable manual Pg 1.66 0
IV.CESI.HNZ. 2024-01-08T03:37:25.34 0.1 undecidable manual S 23 66.7776 50 0.4 89
IV.CSP1.EHZ. 2024-01-08T03:37:19.74 3.0 positive manual Pg 0.34 0
IV.LNSS.HHZ. 2024-01-08T03:37:18.31 0.6 undecidable manual S 66 41.3253 50 0.14 49
IV.GAVE.EHZ. 2024-01-08T03:37:17.19 0.6 undecidable manual S 44 37.0296 50 0.17 49
IV.CESI.HNZ. 2024-01-08T03:37:16.16 0.1 undecidable manual P 23 66.7776 50 -0.02 96
IV.ASSB.HHZ. 2024-01-08T03:37:15.86 3.0 negative manual Pg -0.32 0
IV.CERT.HHZ. 2024-01-08T03:37:15.98 1.0 undecidable manual P 149 65.0904 50 0.05 24
IV.NRCA.HHZ. 2024-01-08T03:37:14.98 0.1 undecidable manual P 46 60.7947 50 -0.29 92
IV.RM33.EHZ. 2024-01-08T03:37:13.50 0.1 undecidable manual P 83 52.503 50 -0.49 90
IV.FIAM.HHZ. 2024-01-08T03:37:13.49 0.1 undecidable manual P 115 48.8178 50 0.07 99
IV.LNSS.HHZ. 2024-01-08T03:37:12.09 0.1 positive manual P 66 41.3253 50 -0.18 98
IV.ARRO.EHZ. 2024-01-08T03:37:12.23 0.6 undecidable manual S 48 20.7681 113 0.15 51
IT.GNU.HGE. 2024-01-08T03:37:11.60 1.0 undecidable manual P 359 38.8278 50 -0.29 24
IV.GAVE.EHZ. 2024-01-08T03:37:11.71 0.1 undecidable manual P 44 37.0296 50 0.1 100
IV.CESX.HHZ. 2024-01-08T03:37:10.60 0.6 undecidable manual S 3 17.1717 118 -0.36 49
IV.SRES.HHZ. 2024-01-08T03:37:09.76 0.6 positive manual P 193 24.6531 110 0.29 49
IT.MMP1.HGE. 2024-01-08T03:37:09.93 0.6 undecidable manual P 148 26.6511 109 0.08 51
IV.ARRO.EHZ. 2024-01-08T03:37:09.02 0.3 undecidable manual P 48 20.7681 113 0.26 75
IV.ORTE.EHN. 2024-01-08T03:37:07.95 0.6 undecidable manual P 273 15.7731 120 0.1 52
IV.CESX.HHZ. 2024-01-08T03:37:07.91 1.0 negative manual P 3 17.1717 118 -0.2 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.8 0.000602 1.28 AML other m 2024-01-08T03:37:10.83
IV.ARRO.EHN. ML:1.6 0.000254 0.18 AML other m 2024-01-08T03:37:13.42
IV.ARRO.EHE. ML:1.5 0.0002355 1.76 AML other m 2024-01-08T03:37:14.07
IV.CESX.HHE. ML:1.8 0.0006305000000000001 0.48 AML other m 2024-01-08T03:37:14.47
IV.GAVE.EHN. ML:1.7 0.0001995 0.8 AML other m 2024-01-08T03:37:19.38
IV.LNSS.HHN. ML:1.8 0.000237 1.58 AML other m 2024-01-08T03:37:20.18
IV.GAVE.EHE. ML:1.6 0.0001525 1.16 AML other m 2024-01-08T03:37:20.80
IV.LNSS.HHE. ML:1.7 0.0001855 1.58 AML other m 2024-01-08T03:37:20.11
IV.ASSB.HHN. ML:1.9 0.00013800000000000002 0.56 AML other m 2024-01-08T03:37:25.38
IV.ASSB.HHE. ML:1.9 0.00014800000000000002 0.5 AML other m 2024-01-08T03:37:25.46
IV.FIAM.HHN. ML:1.6 0.0001215 1.18 AML other m 2024-01-08T03:37:27.61
IV.FIAM.HHE. ML:1.7 0.00014150000000000002 0.42 AML other m 2024-01-08T03:37:28.62
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