Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 29-11-2023 and time 09:14:43 (Italy) in region 4 km NW Valfabbrica (PG)

A magnitude ML 0.9 earthquake occured in region: 4 km NW Valfabbrica (PG), on

  • 29-11-2023 08:14:43 (UTC)
  • 29-11-2023 09:14:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1910, 12.5710 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.

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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
Valfabbrica PG 4 3389 3389
Assisi PG 14 28299 31688
Bastia Umbra PG 14 21874 53562
Perugia PG 17 166134 219696
Gualdo Tadino PG 18 15208 234904
Gubbio PG 18 32216 267120
Fossato di Vico PG 19 2840 269960
Nocera Umbra PG 20 5839 275799

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Perugia (166134 inhabitants)
28 Km NW of Foligno (57155 inhabitants)
64 Km E of Arezzo (99543 inhabitants)
70 Km N of Terni (111501 inhabitants)
81 Km SW of Fano (60888 inhabitants)
85 Km SW of Pesaro (94582 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
97 Km S of Rimini (147750 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 0.9 2023-11-29
08:14:43		 43.1913 12.5707 10 2023-11-29
08:20:21		 Sala Sismica INGV-Roma 123553991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-29 08:14:43 ± 0.09
Latitude 43.1913 ± 0.0063
Longitude 12.5707 ± 0.0123
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 123553991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1139
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
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) 164
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24731
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 123553991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-29 08:20:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2023-11-29T08:14:59.92 3.0 undecidable manual P -0.12 0
IV.TSM3.DHZ.01 2023-11-29T08:14:53.74 0.3 undecidable manual S 321 27.4503 50 -0.09 71
IV.TB02.DHZ.01 2023-11-29T08:14:52.51 0.3 undecidable manual S 327 23.754 113 -0.2 70
IV.ATVO.HHZ. 2023-11-29T08:14:52.80 0.3 undecidable manual S 328 24.9528 112 -0.3 69
IV.ASSB.HHZ. 2023-11-29T08:14:50.99 0.3 undecidable manual S 157 17.9709 119 0.09 73
IV.ATSC.EHE. 2023-11-29T08:14:49.68 0.3 undecidable manual P 20 27.4503 50 0.1 71
IV.TSM3.DHZ.01 2023-11-29T08:14:49.55 0.3 undecidable manual P 321 27.4503 50 -0.03 72
IV.ATVO.HHZ. 2023-11-29T08:14:49.03 0.6 undecidable manual P 328 24.9528 112 -0.14 47
IV.TB01.DHZ.01 2023-11-29T08:14:49.02 0.3 undecidable manual P 333 23.754 113 0.08 72
IV.TB02.DHZ.01 2023-11-29T08:14:48.92 0.3 undecidable manual P 327 23.754 113 -0.02 73
IV.TSM1.DH2.12 2023-11-29T08:14:48.06 0.3 undecidable manual P 7 17.2716 120 0.3 70
IV.MURB.HHZ. 2023-11-29T08:14:48.90 0.3 undecidable manual S 335 8.7801 138 0.53 67
IV.ATCC.EHZ. 2023-11-29T08:14:47.41 0.1 undecidable manual S 97 5.6943 150 -0.33 94
IV.ASSB.HHZ. 2023-11-29T08:14:47.92 0.1 negative manual P 157 17.9709 119 0.03 98
IV.MURB.HHZ. 2023-11-29T08:14:46.59 0.6 undecidable manual P 335 8.7801 138 0.16 48
IV.ATCC.EHZ. 2023-11-29T08:14:46.04 0.1 undecidable manual P 97 5.6943 150 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:0.9 0.0001073666 0.3392 AML other m 2023-11-29T08:14:51.46
IV.MURB.HHN. ML:1.0 0.0001326419 0.1792 AML other m 2023-11-29T08:14:49.86
IV.ASSB.HHE. ML:0.8 0.00005573553 1.9392 AML other m 2023-11-29T08:14:51.56
IV.ASSB.HHN. ML:0.9 0.00007061247500000001 1.0048 AML other m 2023-11-29T08:14:51.72
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