Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 08-12-2023 and time 16:11:12 (Italy) in region 5 km SW Terni (TR)

A magnitude ML 2.0 earthquake occured in region: 5 km SW Terni (TR), on

  • 08-12-2023 15:11:12 (UTC)
  • 08-12-2023 16:11:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5370, 12.5940 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
Terni TR 5 111501 111501
Narni TR 7 19785 131286
Stroncone TR 7 4917 136203
San Gemini TR 9 5018 141221
Configni RI 13 633 141854
Amelia TR 15 11897 153751
Calvi dell'Umbria TR 15 1856 155607
Montecastrilli TR 15 5022 160629
Arrone TR 15 2763 163392
Otricoli TR 16 1869 165261
Montefranco TR 16 1276 166537
Colli sul Velino RI 16 533 167070
Cottanello RI 16 563 167633
Vacone RI 17 256 167889
Labro RI 17 374 168263
Greccio RI 17 1558 169821
Acquasparta TR 18 4778 174599
Montasola RI 18 395 174994
Ferentillo TR 19 1913 176907
Orte VT 19 8923 185830
Avigliano Umbro TR 19 2558 188388
Montebuono RI 19 883 189271
Morro Reatino RI 20 373 189644
Contigliano RI 20 3783 193427
Tarano RI 20 1444 194871

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SW of Terni (111501 inhabitants)
42 Km E of Viterbo (67173 inhabitants)
48 Km S of Foligno (57155 inhabitants)
61 Km N of Guidonia Montecelio (88673 inhabitants)
66 Km S of Perugia (166134 inhabitants)
66 Km N of Tivoli (56533 inhabitants)
69 Km W of L'Aquila (69753 inhabitants)
72 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 2.0 2023-12-08
15:11:12		 42.5373 12.5942 10 2023-12-08
15:21:35		 Sala Sismica INGV-Roma 123898201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-08 15:11:12 ± 0.05
Latitude 42.5373 ± 0.0036
Longitude 12.5942 ± 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 123898201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 324
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 309
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 123898201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-08 15:21:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NDIM.HNZ. 2023-12-08T15:12:34.36 3.0 undecidable manual Sg 7.24 0
IX.COL3.HHZ.02 2023-12-08T15:12:01.51 3.0 undecidable manual Pg 5.97 0
IV.MURB.HHZ. 2023-12-08T15:11:38.94 3.0 undecidable manual S 0.46 0
IV.CSP1.EHZ. 2023-12-08T15:11:38.38 3.0 undecidable manual S 0.47 0
IV.MML1.EHZ. 2023-12-08T15:11:35.33 3.0 undecidable manual S -0.19 0
IV.GUMA.HHZ. 2023-12-08T15:11:35.94 3.0 undecidable manual S -3.37 0
IV.FDMO.HHZ. 2023-12-08T15:11:34.28 3.0 undecidable manual S -0.46 0
IV.CERT.HHZ. 2023-12-08T15:11:34.92 3.0 undecidable manual S -0.49 0
IV.GIUL.HHZ. 2023-12-08T15:11:32.02 3.0 positive manual P -0.62 0
IV.FIAM.HHZ. 2023-12-08T15:11:29.46 0.1 undecidable manual S 125 52.2033 50 0.26 91
IV.RM33.EHZ. 2023-12-08T15:11:28.99 0.3 undecidable manual S 93 50.8158 50 0.16 69
IV.MF5.EHZ. 2023-12-08T15:11:28.20 3.0 positive manual P 0.39 0
IV.FOSV.EHZ. 2023-12-08T15:11:27.59 3.0 negative manual P -0.08 0
IV.CSP1.EHZ. 2023-12-08T15:11:26.30 3.0 positive manual P -0.32 0
IV.TERO.HHZ. 2023-12-08T15:11:26.56 3.0 undecidable manual P -0.61 0
IV.SNTG.HHZ. 2023-12-08T15:11:26.16 3.0 positive manual P -1.38 0
IV.LNSS.HHZ. 2023-12-08T15:11:25.06 0.3 undecidable manual S 79 37.1295 50 -0.12 72
IV.TOLF.HHZ. 2023-12-08T15:11:25.26 3.0 positive manual P 0.11 0
IV.FDMO.HHZ. 2023-12-08T15:11:24.56 3.0 positive manual P -0.28 0
IV.LATE.HHE. 2023-12-08T15:11:24.62 0.3 undecidable manual P 278 65.0904 50 0.51 63
IV.CERT.HHZ. 2023-12-08T15:11:24.75 3.0 negative manual P -0.47 0
IV.SACS.HHZ. 2023-12-08T15:11:24.49 3.0 undecidable manual P 0.08 0
IV.MML1.EHZ. 2023-12-08T15:11:24.98 3.0 positive manual P -0.3 0
IV.SRES.HHZ. 2023-12-08T15:11:24.51 0.3 undecidable manual S 192 34.0437 50 0.16 72
IV.FEMA.HNN. 2023-12-08T15:11:23.83 0.3 undecidable manual P 38 59.9955 50 0.51 63
IV.MOMA.HHZ. 2023-12-08T15:11:23.19 0.3 undecidable manual S 356 29.6481 50 0.02 74
IV.MTCE.HHZ. 2023-12-08T15:11:23.20 3.0 negative manual P 0.37 0
IV.CESI.HHZ. 2023-12-08T15:11:22.96 0.1 undecidable manual P 26 57.6978 50 -0.01 94
IV.ASSB.HHZ. 2023-12-08T15:11:22.79 0.1 undecidable manual P 5 56.2992 50 0.04 94
IV.NRCA.HHZ. 2023-12-08T15:11:22.20 0.1 undecidable manual P 52 53.6019 50 -0.15 92
IV.RM33.EHZ. 2023-12-08T15:11:21.63 0.1 undecidable manual P 93 50.8158 50 -0.28 90
IV.FIAM.HHZ. 2023-12-08T15:11:21.98 0.3 undecidable manual P 125 52.2033 50 -0.15 69
IV.BARO.EHZ. 2023-12-08T15:11:21.23 3.0 undecidable manual P -1.16 0
IV.SRES.HHZ. 2023-12-08T15:11:19.25 0.3 undecidable manual P 192 34.0437 50 -0.08 73
IT.MMP1.HGN. 2023-12-08T15:11:19.32 0.1 undecidable manual P 158 34.3434 50 -0.06 97
IV.LNSS.HHZ. 2023-12-08T15:11:19.49 0.3 undecidable manual P 79 37.1295 50 -0.32 69
IV.ORTE.EHZ. 2023-12-08T15:11:19.59 0.3 undecidable manual S 244 19.1697 117 -0.3 71
IV.MOMA.HHZ. 2023-12-08T15:11:18.43 0.3 undecidable manual P 356 29.6481 50 -0.22 71
IT.GNU.HGZ. 2023-12-08T15:11:18.60 0.3 undecidable manual P 356 29.6481 50 -0.04 74
IV.ARRO.EHZ. 2023-12-08T15:11:18.68 0.3 undecidable manual S 72 14.7741 123 0.12 75
IV.GAVE.EHE. 2023-12-08T15:11:18.45 0.3 undecidable manual P 55 29.9478 50 -0.24 71
IV.CESX.HHZ. 2023-12-08T15:11:16.81 0.3 undecidable manual S 356 7.881 140 0.04 77
IV.ORTE.EHZ. 2023-12-08T15:11:16.81 0.1 undecidable manual P 244 19.1697 117 0.06 100
IV.ARRO.EHZ. 2023-12-08T15:11:16.14 0.3 undecidable manual P 72 14.7741 123 0.15 74
IV.CESX.HHZ. 2023-12-08T15:11:15.03 0.3 undecidable manual P 356 7.881 140 0.08 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:2.5 0.004855000000000001 1.68 AML other m 2023-12-08T15:11:16.14
IV.CESX.HHE. ML:2.2 0.002337785 0.3584 AML other m 2023-12-08T15:11:18.45
IV.ARRO.EHN. ML:2.2 0.00147 0.26 AML other m 2023-12-08T15:11:20.01
IV.ARRO.EHE. ML:1.9 0.0008433289500000001 0.192 AML other m 2023-12-08T15:11:21.33
IV.MOMA.HHE. ML:2.2 0.0007889999999999999 0.24 AML other m 2023-12-08T15:11:24.47
IV.MOMA.HNN. ML:2.3 0.0009135 0.22 AML other m 2023-12-08T15:11:24.48
IV.MOMA.HHN. ML:2.0 0.0005600000000000001 0.2 AML other m 2023-12-08T15:11:24.59
IV.LNSS.HHE. ML:2.2 0.00059339135 0.192 AML other m 2023-12-08T15:11:25.89
IV.LNSS.HNE. ML:2.2 0.00058562475 0.2048 AML other m 2023-12-08T15:11:25.90
IV.MOMA.HNE. ML:2.2 0.00073323625 0.1664 AML other m 2023-12-08T15:11:24.75
IV.LNSS.HHN. ML:2.1 0.000508 0.16 AML other m 2023-12-08T15:11:26.11
IV.LNSS.HNN. ML:2.1 0.0004605 0.16 AML other m 2023-12-08T15:11:26.04
IV.RM33.EHN. ML:1.7 0.000123 0.18 AML other m 2023-12-08T15:11:29.74
IV.RM33.EHE. ML:1.8 0.00017451865 0.256 AML other m 2023-12-08T15:11:31.76
IV.NRCA.HHN. ML:2.2 0.000356 0.12 AML other m 2023-12-08T15:11:31.40
IV.ASSB.HHN. ML:1.8 0.00014163935 0.192 AML other m 2023-12-08T15:11:33.06
IV.ASSB.HHE. ML:1.8 0.000140859715 0.32 AML other m 2023-12-08T15:11:35.67
IV.CESI.HHE. ML:2.0 0.0002295 1.66 AML other m 2023-12-08T15:11:33.94
IV.CESI.HHN. ML:2.1 0.0002904709 0.3328 AML other m 2023-12-08T15:11:33.15
IV.NRCA.HHE. ML:2.1 0.00028886465 0.1536 AML other m 2023-12-08T15:11:33.35
IV.MTCE.HHN. ML:1.4 0.000054797485 0.384 AML other m 2023-12-08T15:11:36.61
IV.FIAM.HHN. ML:1.6 0.00009870000000000001 0.64 AML other m 2023-12-08T15:11:34.27
IV.FDMO.HHN. ML:2.1 0.00024211145 0.2048 AML other m 2023-12-08T15:11:35.12
IV.FDMO.HHE. ML:2.4 0.000439 0.26 AML other m 2023-12-08T15:11:35.49
IV.TOLF.HHE. ML:1.8 0.00009625000000000001 0.24 AML other m 2023-12-08T15:11:36.50
IV.MTCE.HHE. ML:1.5 0.00007242080500000001 0.4608 AML other m 2023-12-08T15:11:36.96
IV.CERT.HHE. ML:1.7 0.00008096483 0.4352 AML other m 2023-12-08T15:11:40.31
IV.CERT.HHN. ML:1.8 0.00009095 1.76 AML other m 2023-12-08T15:11:38.08
IV.CSP1.EHE. ML:2.4 0.00035316505 0.2176 AML other m 2023-12-08T15:11:38.75
IV.MML1.EHN. ML:2.0 0.0001571188 0.2432 AML other m 2023-12-08T15:11:36.30
IV.CSP1.EHN. ML:2.5 0.0004096562 0.4224 AML other m 2023-12-08T15:11:41.22
IV.MML1.EHE. ML:2.1 0.00018832535 0.3456 AML other m 2023-12-08T15:11:40.16
IV.FOSV.EHN. ML:1.8 0.0000779 0.4 AML other m 2023-12-08T15:11:43.50
IV.FOSV.EHE. ML:1.6 0.000051317145 0.4096 AML other m 2023-12-08T15:11:47.30
IV.SRES.HHE. ML:1.6 0.00017159385 0.2048 AML other m 2023-12-08T15:11:26.94
IV.BARO.EHE. ML:0.8 0.00001415988 0.3328 AML other m 2023-12-08T15:11:34.46
IV.BARO.EHN. ML:1.7 0.0001188972 0.4352 AML other m 2023-12-08T15:11:36.03
IV.BARO.HNE. ML:1.8 0.000145994935 0.6784 AML other m 2023-12-08T15:11:36.21
IV.BARO.HNN. ML:1.8 0.0001446493 0.4608 AML other m 2023-12-08T15:11:36.24
IV.RM33.HNE. ML:1.9 0.00018489057999999996 0.256 AML other m 2023-12-08T15:11:31.64
IV.RM33.HNN. ML:1.7 0.000139233625 0.2048 AML other m 2023-12-08T15:11:29.64
IV.NRCA.HNE. ML:2.1 0.00029408714999999995 0.1664 AML other m 2023-12-08T15:11:33.36
IV.NRCA.HNN. ML:2.2 0.0003578492 0.128 AML other m 2023-12-08T15:11:31.46
IV.CESI.HNE. ML:1.9 0.00017903895000000001 0.2304 AML other m 2023-12-08T15:11:32.99
IV.CESI.HNN. ML:2.1 0.0002607557 0.32 AML other m 2023-12-08T15:11:33.58
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
Waveforms Seismic signals in miniseed + resp format Download