Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 09-12-2023 and time 00:52:49 (Italy) in region 3 km S Campello sul Clitunno (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km S Campello sul Clitunno (PG), on

  • 08-12-2023 23:52:49 (UTC)
  • 09-12-2023 00:52:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7930, 12.7770 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
Campello sul Clitunno PG 3 2442 2442
Spoleto PG 7 38218 40660
Vallo di Nera PG 8 364 41024
Sant'Anatolia di Narco PG 8 564 41588
Castel Ritaldi PG 9 3278 44866
Trevi PG 10 8469 53335
Scheggino PG 10 461 53796
Cerreto di Spoleto PG 12 1075 54871
Montefalco PG 15 5679 60550
Poggiodomo PG 16 117 60667
Sellano PG 16 1079 61746
Giano dell'Umbria PG 17 3846 65592
Ferentillo TR 19 1913 67505
Foligno PG 19 57155 124660

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SE of Foligno (57155 inhabitants)
28 Km NE of Terni (111501 inhabitants)
47 Km SE of Perugia (166134 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
77 Km W of Teramo (54892 inhabitants)
88 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km N of Tivoli (56533 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 0.8 2023-12-08
23:52:49		 42.7933 12.7767 11 2023-12-09
00:04:24		 Sala Sismica INGV-Roma 123906891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-08 23:52:49 ± 0.07
Latitude 42.7933 ± 0.0090
Longitude 12.7767 ± 0.0061
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123906891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 960
Semi-minor axis of confidence ellipse (meter) 470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.13310
Epicentral distance of station farthest from the epicenter (degree) 0.27160
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 123906891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-09 00:04:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2023-12-08T23:53:00.49 0.6 undecidable manual S 341 29.2485 90 0.25 46
IV.LNSS.HHE. 2023-12-08T23:53:00.25 0.6 undecidable manual S 134 30.1476 90 -0.22 48
IV.CESI.HNZ. 2023-12-08T23:52:59.43 0.6 undecidable manual S 24 25.6521 90 0.15 48
IV.NRCA.HHZ. 2023-12-08T23:52:59.76 0.6 undecidable manual S 81 27.8499 90 -0.1 50
IV.LNSS.HHE. 2023-12-08T23:52:56.01 0.1 undecidable manual P 134 30.1476 90 -0.02 100
IV.GAVE.HNZ. 2023-12-08T23:52:56.03 0.6 undecidable manual S 139 14.7741 90 -0.33 48
IV.MOMA.HHZ. 2023-12-08T23:52:56.71 0.6 undecidable manual S 274 16.872 90 -0.22 49
IV.CESI.HNZ. 2023-12-08T23:52:55.33 0.1 undecidable manual P 24 25.6521 90 -0.01 100
IV.NRCA.HHZ. 2023-12-08T23:52:55.56 0.3 positive manual P 81 27.8499 90 -0.11 75
IV.ASSB.HHZ. 2023-12-08T23:52:55.84 0.3 undecidable manual P 341 29.2485 90 -0.05 75
IV.MOMA.HHZ. 2023-12-08T23:52:53.93 0.6 undecidable manual P 274 16.872 90 -0.06 51
IV.GAVE.HNZ. 2023-12-08T23:52:53.92 0.1 undecidable manual P 139 14.7741 90 0.26 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:0.5 0.000025242938 0.2176 AML other m 2023-12-08T23:52:57.20
IV.MOMA.HHN. ML:0.4 0.0000212553575 0.2688 AML other m 2023-12-08T23:52:57.32
IV.MOMA.HNE. ML:1.1 0.00009576129 0.5888 AML other m 2023-12-08T23:52:57.45
IV.MOMA.HNN. ML:1.1 0.00011636589 1.0368 AML other m 2023-12-08T23:53:01.24
IV.NRCA.HHE. ML:0.6 0.000021415245 0.1408 AML other m 2023-12-08T23:52:59.87
IV.NRCA.HHN. ML:0.6 0.0000201507375 0.128 AML other m 2023-12-08T23:52:59.87
IV.NRCA.HNE. ML:1.2 0.00008663438700000001 0.4992 AML other m 2023-12-08T23:53:08.64
IV.NRCA.HNN. ML:1.6 0.00019475029999999998 0.8192 AML other m 2023-12-08T23:52:59.91
IV.ASSB.HHE. ML:0.8 0.000028155935 1.6512 AML other m 2023-12-08T23:53:08.40
IV.ASSB.HHN. ML:0.0 0.00000674789702 44.6848 AML other m 2023-12-08T23:52:55.44
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