Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 08-01-2024 and time 01:24:14 (Italy) in region 7 km N Calvi dell'Umbria (TR)

A magnitude ML 1.4 earthquake occured in region: 7 km N Calvi dell'Umbria (TR), on

  • 08-01-2024 00:24:14 (UTC)
  • 08-01-2024 01:24:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4630, 12.5740 at 11 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 7 1856 1856
Configni RI 7 633 2489
Narni TR 8 19785 22274
Stroncone TR 8 4917 27191
Otricoli TR 9 1869 29060
Vacone RI 10 256 29316
Montebuono RI 11 883 30199
Cottanello RI 11 563 30762
Tarano RI 12 1444 32206
Montasola RI 12 395 32601
Terni TR 13 111501 144102
Torri in Sabina RI 13 1256 145358
Magliano Sabina RI 14 3774 149132
Collevecchio RI 14 1577 150709
Orte VT 15 8923 159632
Casperia RI 16 1246 160878
Greccio RI 16 1558 162436
Selci RI 16 1106 163542
Contigliano RI 17 3783 167325
San Gemini TR 17 5018 172343
Gallese VT 17 2849 175192
Amelia TR 17 11897 187089
Colli sul Velino RI 18 533 187622
Cantalupo in Sabina RI 18 1685 189307
Penna in Teverina TR 18 1099 190406
Stimigliano RI 18 2328 192734
Forano RI 18 3179 195913
Roccantica RI 19 563 196476
Vasanello VT 19 4068 200544

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Terni (111501 inhabitants)
39 Km E of Viterbo (67173 inhabitants)
53 Km N of Guidonia Montecelio (88673 inhabitants)
56 Km S of Foligno (57155 inhabitants)
58 Km NW of Tivoli (56533 inhabitants)
64 Km N of Roma (2864731 inhabitants)
69 Km W of L'Aquila (69753 inhabitants)
73 Km S of Perugia (166134 inhabitants)
76 Km NE of Civitavecchia (52991 inhabitants)
82 Km NE of Fiumicino (78395 inhabitants)
88 Km N of Velletri (53303 inhabitants)
88 Km N of Pomezia (62966 inhabitants)
95 Km W of Teramo (54892 inhabitants)
97 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 1.4 2024-01-08
00:24:14		 42.4627 12.5738 11 2024-01-08
00:43:47		 Sala Sismica INGV-Roma 124539371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-08 00:24:14 ± 0.11
Latitude 42.4627 ± 0.0054
Longitude 12.5738 ± 0.0134
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124539371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1140
Semi-minor axis of confidence ellipse (meter) 480
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47484
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 124539371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-08 00:43:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2024-01-08T00:24:44.88 3.0 undecidable manual S -2.75 0
IV.RIBO.EHZ.01 2024-01-08T00:24:38.60 3.0 undecidable manual P 0.07 0
IV.CERA.HHZ. 2024-01-08T00:24:38.84 3.0 undecidable manual P -0.43 0
IV.MTCE.HHZ. 2024-01-08T00:24:24.76 3.0 undecidable manual P 0.72 0
IV.RM33.EHZ. 2024-01-08T00:24:24.05 1.0 undecidable manual P 84 52.7028 50 0.11 46
IV.SRES.HHZ. 2024-01-08T00:24:23.65 0.6 undecidable manual S 192 25.5522 50 -0.06 98
IV.ARRO.EHZ. 2024-01-08T00:24:22.32 0.6 undecidable manual S 50 20.3685 50 0.01 100
IV.LNSS.HHZ. 2024-01-08T00:24:22.12 0.6 positive manual P 68 41.2254 50 -0.05 96
IV.CESX.HHZ. 2024-01-08T00:24:20.93 0.6 undecidable manual S 4 16.1727 124 -0.2 97
IV.SRES.HHZ. 2024-01-08T00:24:19.79 1.0 undecidable manual P 192 25.5522 50 0.03 49
IV.ARRO.EHZ. 2024-01-08T00:24:18.86 1.0 positive manual P 50 20.3685 50 -0.09 49
IV.CESX.HHZ. 2024-01-08T00:24:18.92 1.0 positive manual P 4 16.1727 124 0.65 43
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.4 0.0002205 1.72 AML other m 2024-01-08T00:24:20.94
IV.CESX.HHE. ML:1.3 0.0001795 1.6 AML other m 2024-01-08T00:24:25.85
IV.LNSS.HHE. ML:1.5 0.00009665 0.42 AML other m 2024-01-08T00:24:30.14
IV.LNSS.HHN. ML:1.5 0.0001101 0.42 AML other m 2024-01-08T00:24:36.65
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