Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 24-01-2023 and time 16:26:26 (Italy) in region 6 km NE Nocera Umbra (PG)

A magnitude ML 1.1 earthquake occured in region: 6 km NE Nocera Umbra (PG), on

  • 24-01-2023 15:26:26 (UTC)
  • 24-01-2023 16:26:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1560, 12.8260 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Nocera Umbra PG 6 5839 5839
Gualdo Tadino PG 9 15208 21047
Fiuminata MC 9 1402 22449
Sefro MC 10 422 22871
Valtopina PG 12 1398 24269
Pioraco MC 13 1134 25403
Serravalle di Chienti MC 14 1070 26473
Esanatoglia MC 15 2034 28507
Fossato di Vico PG 16 2840 31347
Valfabbrica PG 18 3389 34736
Matelica MC 19 9981 44717
Assisi PG 19 28299 73016
Muccia MC 20 915 73931
Castelraimondo MC 20 4587 78518
Camerino MC 20 6974 85492

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
68 Km N of Terni (111501 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
78 Km S of Fano (60888 inhabitants)
84 Km E of Arezzo (99543 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
90 Km NW of Teramo (54892 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
Bulletin
Rev1000 		ML 1.1 2023-01-24
15:26:26		 43.1558 12.8262 10 2024-03-01
17:17:54		 Bollettino Sismico Italiano INGV 113985311
Reviewed
Rev100 		ML 1.1 2023-01-24
15:26:26		 43.1552 12.8288 11 2023-01-24
15:31:27		 Sala Sismica INGV-Roma 113760941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-24 15:26:26 ± 0.04
Latitude 43.1558 ± 0.0018
Longitude 12.8262 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113985311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 252
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39840
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 113985311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-02-02 13:21:58

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 113760941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-24 15:31:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2023-01-24T15:26:41.07 0.1 undecidable manual S 208 44.2224 50 0.15 93
IV.FRON.EHZ. 2023-01-24T15:26:40.35 0.3 undecidable manual S 349 40.9257 50 0.3 68
IV.NRCA.HHZ. 2023-01-24T15:26:40.70 0.1 undecidable manual S 147 42.7239 50 0.18 93
IV.ARVD.HHZ. 2023-01-24T15:26:39.43 0.3 undecidable manual S 14 39.1275 50 -0.12 71
IV.ATSC.EHZ. 2023-01-24T15:26:37.43 0.1 undecidable manual S 339 31.8459 50 -0.18 94
IV.CSP1.EHZ. 2023-01-24T15:26:37.68 0.3 undecidable manual S 103 31.4463 50 0.16 71
IV.EL6.EHZ. 2023-01-24T15:26:37.13 0.1 undecidable manual S 49 29.4483 50 0.15 95
IV.FDMO.HHZ. 2023-01-24T15:26:35.55 0.6 undecidable manual S 122 24.9528 112 -0.15 48
IV.FRON.EHZ. 2023-01-24T15:26:34.37 0.1 undecidable manual P 349 40.9257 50 0.09 95
IV.MOMA.HHZ. 2023-01-24T15:26:34.57 0.3 undecidable manual P 208 44.2224 50 -0.21 69
IV.NRCA.HHZ. 2023-01-24T15:26:34.37 0.1 undecidable manual P 147 42.7239 50 -0.18 93
IV.FOSV.EHZ. 2023-01-24T15:26:33.07 0.1 undecidable manual S 100
IV.ARVD.HHZ. 2023-01-24T15:26:33.92 0.3 undecidable manual P 14 39.1275 50 -0.07 71
IV.CESI.HHZ. 2023-01-24T15:26:33.35 0.3 undecidable manual S 159 17.871 119 -0.13 73
IV.SNTG.HHZ. 2023-01-24T15:26:32.51 0.1 undecidable manual S 40 14.3745 124 0.07 99
IV.EL6.EHZ. 2023-01-24T15:26:32.28 0.1 undecidable manual P 49 29.4483 50 -0.22 94
IV.ATSC.EHZ. 2023-01-24T15:26:32.70 0.1 undecidable manual P 339 31.8459 50 -0.17 95
IV.ATCC.EHZ. 2023-01-24T15:26:32.83 0.1 undecidable manual S 282 15.3735 123 0.09 99
IV.CSP1.EHZ. 2023-01-24T15:26:32.97 0.3 undecidable manual P 103 31.4463 50 0.15 71
IV.SSFR.HHN. 2023-01-24T15:26:32.52 0.6 undecidable manual P 354 31.3464 50 -0.27 46
IV.FDMO.HHZ. 2023-01-24T15:26:31.70 0.1 undecidable manual P 122 24.9528 112 -0.07 98
IV.CESI.HHZ. 2023-01-24T15:26:30.50 0.1 undecidable manual P 159 17.871 119 0.01 100
IV.ATCC.EHZ. 2023-01-24T15:26:30.18 0.1 undecidable manual P 282 15.3735 123 0.12 98
IV.SNTG.HHZ. 2023-01-24T15:26:29.99 0.1 undecidable manual P 40 14.3745 124 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:1.2 0.00014615 0.48 AML other m 2023-01-24T15:26:32.64
IV.ATCC.EHN. ML:1.2 0.000161 0.32 AML other m 2023-01-24T15:26:33.06
IV.ATCC.EHE. ML:1.1 0.00011649999999999999 0.54 AML other m 2023-01-24T15:26:33.17
IV.SNTG.HHN. ML:0.9 0.0000774 0.98 AML other m 2023-01-24T15:26:33.94
IV.FOSV.EHN. ML:0.9 0.00006819999999999999 0.92 AML other m 2023-01-24T15:26:33.65
IV.FOSV.EHE. ML:1.0 0.00008774999999999999 1.46 AML other m 2023-01-24T15:26:34.13
IV.FDMO.HHN. ML:1.0 0.000057 0.78 AML other m 2023-01-24T15:26:35.99
IV.FDMO.HHE. ML:0.8 0.000037199999999999996 0.5 AML other m 2023-01-24T15:26:38.87
IV.FRON.EHE. ML:1.4 0.0000736 0.42 AML other m 2023-01-24T15:26:41.00
IV.MOMA.HHN. ML:1.1 0.00003885 0.76 AML other m 2023-01-24T15:26:42.60
IV.FRON.EHN. ML:1.3 0.00007075000000000001 0.52 AML other m 2023-01-24T15:26:44.67
IV.MOMA.HHE. ML:1.1 0.0000421 0.66 AML other m 2023-01-24T15:26:45.47
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