Earthquake with magnitude of ML 1.4 on date 08-12-2023 and time 17:15:43 (UTC) in region 5 km W Terni (TR)

A magnitude ML 1.4 earthquake occured in region: 5 km W Terni (TR), on

  • 08-12-2023 17:15:43 (UTC)
  • 08-12-2023 18:15:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5410, 12.5900 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Terni TR 5 111501 111501
Narni TR 6 19785 131286
Stroncone TR 8 4917 136203
San Gemini TR 9 5018 141221
Configni RI 14 633 141854
Amelia TR 15 11897 153751
Montecastrilli TR 15 5022 158773
Calvi dell'Umbria TR 16 1856 160629
Arrone TR 16 2763 163392
Otricoli TR 16 1869 165261
Montefranco TR 16 1276 166537
Colli sul Velino RI 16 533 167070
Cottanello RI 17 563 167633
Acquasparta TR 17 4778 172411
Labro RI 17 374 172785
Vacone RI 18 256 173041
Greccio RI 18 1558 174599
Avigliano Umbro TR 18 2558 177157
Ferentillo TR 19 1913 179070
Montasola RI 19 395 179465
Orte VT 19 8923 188388
Montebuono RI 19 883 189271
Penna in Teverina TR 20 1099 190370

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of Terni (111501 inhabitants)
42 Km E of Viterbo (67173 inhabitants)
47 Km S of Foligno (57155 inhabitants)
61 Km N of Guidonia Montecelio (88673 inhabitants)
65 Km S of Perugia (166134 inhabitants)
66 Km N of Tivoli (56533 inhabitants)
70 Km W of L'Aquila (69753 inhabitants)
73 Km N of Roma (2864731 inhabitants)
82 Km NE of Civitavecchia (52991 inhabitants)
90 Km NE of Fiumicino (78395 inhabitants)
92 Km W of Teramo (54892 inhabitants)
96 Km N of Velletri (53303 inhabitants)
97 Km N of Pomezia (62966 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 2023-12-08
17:15:43
42.5413 12.5895 10 2023-12-08
17:27:32
Sala Sismica INGV-Roma 123901141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-08 17:15:43 ± 0.06
Latitude 42.5413 ± 0.0054
Longitude 12.5895 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123901141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 576
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 159
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 123901141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-08 17:27:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRLC.HHZ. 2023-12-08T17:17:05.09 3.0 undecidable manual Sn 1.42 0
IV.MUCR.HHZ. 2023-12-08T17:17:02.33 3.0 undecidable manual Pg 6.41 0
IV.VAGA.HNZ. 2023-12-08T17:16:35.58 3.0 undecidable manual Sg -1.36 0
IV.SBPO.HNZ. 2023-12-08T17:16:19.56 3.0 negative manual Pg 1.29 0
IV.ORTE.EHE. 2023-12-08T17:15:50.39 0.6 undecidable manual S 242 18.9699 119 -0.2 49
IV.LNSS.HNN. 2023-12-08T17:15:50.22 0.1 undecidable manual P 79 37.4292 50 -0.14 96
IV.ARRO.EHZ. 2023-12-08T17:15:49.52 0.3 undecidable manual S 74 14.9739 125 0.11 75
IT.GNU.HGZ. 2023-12-08T17:15:49.20 0.1 undecidable manual P 357 29.1486 50 0.12 98
IV.GAVE.EHZ. 2023-12-08T17:15:49.21 0.1 undecidable manual P 56 29.9478 50 0 100
IV.MOMA.HHZ. 2023-12-08T17:15:49.06 0.1 undecidable manual P 357 29.1486 50 -0.03 100
IV.CESX.HHZ. 2023-12-08T17:15:47.36 0.6 undecidable manual S 358 7.4814 144 -0.15 50
IV.ORTE.EHE. 2023-12-08T17:15:47.59 0.1 undecidable manual P 242 18.9699 119 0.17 98
IV.PIEI.HHZ. 2023-12-08T17:15:46.24 3.0 negative manual P -3.18 0
IV.ARRO.EHZ. 2023-12-08T17:15:46.71 0.3 negative manual P 74 14.9739 125 -0.02 77
IV.CESX.HHZ. 2023-12-08T17:15:45.64 0.3 positive manual P 358 7.4814 144 0 78
IV.ARVD.HHZ. 2023-12-08T17:15:44.10 3.0 negative manual P -3.47 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.8 0.0009184999999999999 0.34 AML other m 2023-12-08T17:15:47.71
IV.CESX.HHE. ML:1.5 0.0004715 0.34 AML other m 2023-12-08T17:15:49.02
IV.ARRO.EHN. ML:1.5 0.00028300000000000005 0.26 AML other m 2023-12-08T17:15:50.69
IV.ARRO.EHE. ML:1.4 0.00021 1.36 AML other m 2023-12-08T17:15:52.90
IV.MOMA.HHN. ML:1.5 0.0001485 0.82 AML other m 2023-12-08T17:15:55.16
IV.MOMA.HHE. ML:1.4 0.0001255 0.78 AML other m 2023-12-08T17:15:55.64
IV.GAVE.EHN. ML:1.3 0.00008815 0.12 AML other m 2023-12-08T17:15:57.08
IV.GAVE.EHE. ML:1.3 0.0000971 0.38 AML other m 2023-12-08T17:15:58.76
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