Earthquake with magnitude of ML 1.7 on date 06-12-2023 and time 20:29:43 (UTC) in region 3 km SE Allerona (TR)

A magnitude ML 1.7 earthquake occured in region: 3 km SE Allerona (TR), on

  • 06-12-2023 20:29:43 (UTC)
  • 06-12-2023 21:29:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7890, 12.0020 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
Allerona TR 4 1794 1794
Castel Viscardo TR 4 2938 4732
Ficulle TR 8 1669 6401
Fabro TR 9 2876 9277
Castel Giorgio TR 9 2131 11408
Orvieto TR 12 20630 32038
Parrano TR 12 534 32572
Acquapendente VT 12 5506 38078
San Lorenzo Nuovo VT 14 2091 40169
Porano TR 14 1966 42135
San Casciano dei Bagni SI 14 1632 43767
Proceno VT 14 557 44324
Monteleone d'Orvieto TR 15 1467 45791
Bolsena VT 16 3991 49782
Montegabbione TR 17 1216 50998
Grotte di Castro VT 17 2683 53681
Città della Pieve PG 18 7712 61393
Onano VT 19 995 62388
Lubriano VT 19 909 63297
Bagnoregio VT 20 3650 66947
Gradoli VT 20 1353 68300

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Viterbo (67173 inhabitants)
47 Km SW of Perugia (166134 inhabitants)
59 Km W of Terni (111501 inhabitants)
60 Km W of Foligno (57155 inhabitants)
73 Km E of Grosseto (82087 inhabitants)
76 Km S of Arezzo (99543 inhabitants)
79 Km N of Civitavecchia (52991 inhabitants)
80 Km SE of Siena (53903 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 2023-12-06
20:29:43
42.7887 12.0023 10 2023-12-06
20:41:43
Sala Sismica INGV-Roma 123859191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-06 20:29:43 ± 0.11
Latitude 42.7887 ± 0.0063
Longitude 12.0023 ± 0.0074
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123859191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 775
Semi-minor axis of confidence ellipse (meter) 244
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 326
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.66280
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 123859191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-06 20:41:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZCCA.HHZ. 2023-12-06T20:30:14.55 3.0 negative manual Pn 1.34 0
IV.ATVO.HHZ. 2023-12-06T20:30:06.36 1.0 undecidable manual S 26 73.5708 50 0.1 23
IV.MURB.HHZ. 2023-12-06T20:30:05.15 0.3 undecidable manual S 39 67.5768 50 0.49 64
IV.ATMI.HHZ. 2023-12-06T20:30:03.83 0.3 undecidable manual S 19 64.1913 50 0.05 70
IV.CAFI.HHZ. 2023-12-06T20:30:02.99 0.6 undecidable manual S 357 59.9955 50 0.34 44
IV.ATVO.HHZ. 2023-12-06T20:29:56.88 0.3 undecidable manual P 26 73.5708 50 0.05 69
IV.ATMI.HHZ. 2023-12-06T20:29:55.35 0.3 undecidable manual P 19 64.1913 50 -0.05 70
IV.MURB.HHZ. 2023-12-06T20:29:55.98 0.3 undecidable manual P 39 67.5768 50 0.07 70
IV.CAFI.HHZ. 2023-12-06T20:29:54.63 0.3 undecidable manual P 357 59.9955 50 -0.12 70
IV.LATE.HHZ. 2023-12-06T20:29:53.68 0.3 undecidable manual S 220 25.2525 50 0.31 72
IV.MCIV.CHZ. 2023-12-06T20:29:53.40 0.3 undecidable manual S 268 26.5512 50 -0.32 71
TV.SF11.HHZ. 2023-12-06T20:29:53.68 0.3 undecidable manual S 289 27.75 50 -0.36 70
IV.ARCI.HHZ. 2023-12-06T20:29:52.29 0.3 undecidable manual P 279 43.4232 50 0.09 72
IV.MOMA.HHZ. 2023-12-06T20:29:52.19 0.3 undecidable manual P 88 46.2204 50 -0.44 67
IV.MGAB.HHZ. 2023-12-06T20:29:50.37 0.3 undecidable manual S 33 16.3725 122 -0.28 73
IV.MCIV.CHZ. 2023-12-06T20:29:49.39 0.1 undecidable manual P 268 26.5512 50 -0.2 97
IV.SACS.HHZ. 2023-12-06T20:29:49.20 0.3 undecidable manual S 312 10.0788 135 0.28 74
TV.SF11.HHZ. 2023-12-06T20:29:49.71 0.1 undecidable manual P 289 27.75 50 -0.07 100
IV.LATE.HHZ. 2023-12-06T20:29:49.69 0.3 undecidable manual P 220 25.2525 50 0.29 72
IV.SACS.HHZ. 2023-12-06T20:29:47.03 0.1 undecidable manual P 312 10.0788 135 0.21 100
IV.MGAB.HHZ. 2023-12-06T20:29:47.55 0.3 undecidable manual P 33 16.3725 122 -0.28 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HNN. ML:1.7 0.0006045 1.44 AML other m 2023-12-06T20:29:49.75
IV.SACS.HHN. ML:1.7 0.0006035 0.8 AML other m 2023-12-06T20:29:49.36
IV.SACS.HHE. ML:1.8 0.000733 0.18 AML other m 2023-12-06T20:29:49.81
IV.SACS.HNE. ML:1.8 0.0007515000000000001 0.18 AML other m 2023-12-06T20:29:49.90
IV.MGAB.HNE. ML:1.6 0.000378 0.66 AML other m 2023-12-06T20:29:51.38
IV.MGAB.HNN. ML:1.7 0.00046599999999999994 0.98 AML other m 2023-12-06T20:29:51.26
IV.MGAB.HHE. ML:1.7 0.000411 0.38 AML other m 2023-12-06T20:29:51.57
IV.MGAB.HHN. ML:1.6 0.00036899999999999997 0.84 AML other m 2023-12-06T20:29:51.53
IV.LATE.HHN. ML:1.8 0.0004115 0.98 AML other m 2023-12-06T20:29:55.40
IV.LATE.HHE. ML:1.7 0.000319 0.24 AML other m 2023-12-06T20:29:56.11
IV.ATMI.HHE. ML:1.7 0.00009035 1.32 AML other m 2023-12-06T20:30:05.04
IV.MURB.HHN. ML:1.9 0.000143 0.58 AML other m 2023-12-06T20:30:07.50
IV.MURB.HHE. ML:2.0 0.0001805 0.62 AML other m 2023-12-06T20:30:07.83
IV.ATMI.HHN. ML:1.7 0.0000852 0.98 AML other m 2023-12-06T20:30:09.01
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