Earthquake with magnitude of ML 1.2 on date 27-11-2023 and time 17:26:16 (UTC) in region 5 km NW Cerreto di Spoleto (PG)

A magnitude ML 1.2 earthquake occured in region: 5 km NW Cerreto di Spoleto (PG), on

  • 27-11-2023 17:26:16 (UTC)
  • 27-11-2023 18:26:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8530, 12.8750 at 17 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
Cerreto di Spoleto PG 5 1075 1075
Sellano PG 6 1079 2154
Campello sul Clitunno PG 9 2442 4596
Vallo di Nera PG 9 364 4960
Trevi PG 11 8469 13429
Sant'Anatolia di Narco PG 14 564 13993
Preci PG 14 724 14717
Scheggino PG 16 461 15178
Poggiodomo PG 16 117 15295
Castel Ritaldi PG 17 3278 18573
Spoleto PG 17 38218 56791
Foligno PG 18 57155 113946
Cascia PG 19 3217 117163
Montefalco PG 19 5679 122842
Monte Cavallo MC 19 145 122987
Norcia PG 19 4957 127944
Visso MC 20 1107 129051

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of Foligno (57155 inhabitants)
37 Km NE of Terni (111501 inhabitants)
49 Km SE of Perugia (166134 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
71 Km W of Teramo (54892 inhabitants)
79 Km NE of Viterbo (67173 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
99 Km N of Tivoli (56533 inhabitants)
100 Km SW of Ancona (100861 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 1.2 2023-11-27
17:26:16
42.8527 12.8753 17 2023-11-27
17:31:04
Sala Sismica INGV-Roma 123497951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-27 17:26:16 ± 0.13
Latitude 42.8527 ± 0.0045
Longitude 12.8753 ± 0.0074
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123497951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 482
Semi-minor axis of confidence ellipse (meter) 431
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.15378
Epicentral distance of station farthest from the epicenter (degree) 0.33904
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 123497951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-27 17:31:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-11-27T17:26:29.62 0.6 undecidable manual S 45 37.629 104 0.25 46
IV.MML1.EHZ. 2023-11-27T17:26:27.56 0.3 undecidable manual S 15 29.9478 109 0.16 72
IV.MOMA.HHZ. 2023-11-27T17:26:26.54 0.6 undecidable manual S 258 25.4523 113 0.27 47
IV.FDMO.HHZ. 2023-11-27T17:26:26.69 0.6 undecidable manual S 40 26.6511 112 0.12 49
IV.ASSB.HHZ. 2023-11-27T17:26:26.40 0.3 undecidable manual S 320 27.4503 111 -0.37 69
IV.GAVE.EHZ. 2023-11-27T17:26:24.24 0.3 undecidable manual S 175 17.871 125 -0.26 72
IV.NRCA.HHZ. 2023-11-27T17:26:24.75 0.3 undecidable manual S 96 19.5693 122 -0.12 74
IV.CESI.HHZ. 2023-11-27T17:26:24.03 0.3 undecidable manual S 8 17.0718 127 -0.29 71
IV.CSP1.EHZ. 2023-11-27T17:26:23.76 0.1 undecidable manual P 45 37.629 104 -0.24 93
IV.MML1.EHZ. 2023-11-27T17:26:23.11 0.1 undecidable manual P 15 29.9478 109 0.25 94
IV.FDMO.HHZ. 2023-11-27T17:26:22.33 0.6 undecidable manual P 40 26.6511 112 -0.06 49
IV.ASSB.HHZ. 2023-11-27T17:26:22.48 0.1 undecidable manual P 320 27.4503 111 -0.01 99
IV.MOMA.HHZ. 2023-11-27T17:26:22.57 1.0 positive manual P 258 25.4523 113 0.36 23
IV.CESI.HHZ. 2023-11-27T17:26:21.14 0.1 undecidable manual P 8 17.0718 127 0.06 100
IV.GAVE.EHZ. 2023-11-27T17:26:21.32 0.1 undecidable manual P 175 17.871 125 0.14 98
IV.NRCA.HHZ. 2023-11-27T17:26:21.47 0.1 undecidable manual P 96 19.5693 122 0.07 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.4 0.0001585 0.32 AML other m 2023-11-27T17:26:24.45
IV.CESI.HHE. ML:1.4 0.0001591 0.2 AML other m 2023-11-27T17:26:24.37
IV.GAVE.EHE. ML:1.4 0.0001735 0.16 AML other m 2023-11-27T17:26:24.51
IV.GAVE.EHN. ML:1.5 0.0001945 0.18 AML other m 2023-11-27T17:26:24.53
IV.NRCA.HHN. ML:1.0 0.0000603 1.84 AML other m 2023-11-27T17:26:24.01
IV.NRCA.HHE. ML:1.0 0.000057999999999999994 0.48 AML other m 2023-11-27T17:26:26.58
IV.FDMO.HHE. ML:1.0 0.0000511 0.3 AML other m 2023-11-27T17:26:26.88
IV.FDMO.HHN. ML:0.9 0.0000386 0.14 AML other m 2023-11-27T17:26:26.90
IV.MML1.EHE. ML:1.1 0.000049850000000000006 0.28 AML other m 2023-11-27T17:26:27.75
IV.MML1.EHN. ML:0.9 0.000032800000000000004 0.16 AML other m 2023-11-27T17:26:27.92
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