Earthquake with magnitude of ML 1.0 on date 24-09-2023 and time 22:38:33 (UTC) in region 1 km S Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 1 km S Norcia (PG), on

  • 24-09-2023 22:38:33 (UTC)
  • 25-09-2023 00:38:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7850, 13.0960 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
Norcia PG 1 4957 4957
Cascia PG 10 3217 8174
Preci PG 12 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Cerreto di Spoleto PG 15 1075 10254
Poggiodomo PG 15 117 10371
Accumoli RI 16 667 11038
Visso MC 16 1107 12145
Arquata del Tronto AP 17 1178 13323
Sellano PG 18 1079 14402
Ussita MC 18 444 14846
Monteleone di Spoleto PG 19 599 15445
Vallo di Nera PG 19 364 15809
Cittareale RI 19 482 16291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SE of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 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 1.0 2023-09-24
22:38:33
42.7848 13.0963 10 2023-09-24
22:49:14
Sala Sismica INGV-Roma 121429991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-24 22:38:33 ± 0.06
Latitude 42.7848 ± 0.0027
Longitude 13.0963 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121429991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 459
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 121
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 121429991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-24 22:49:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2023-09-24T22:39:03.59 3.0 undecidable manual S -0.61 0
IV.MF5.EHE. 2023-09-24T22:38:46.51 0.1 undecidable manual S 53 37.1295 50 0.73 80
IV.GUMA.HHZ. 2023-09-24T22:38:45.97 0.1 undecidable manual S 32 36.4413 50 0.39 90
IV.CSP1.EHZ. 2023-09-24T22:38:45.29 0.1 undecidable manual S 14 35.1426 50 0.04 97
IV.RM33.EHZ. 2023-09-24T22:38:44.12 0.1 undecidable manual S 162 32.0457 50 -0.31 92
IV.CESI.HHN. 2023-09-24T22:38:43.32 0.1 undecidable manual S 327 28.9488 50 -0.27 93
IV.SMA1.EHZ. 2023-09-24T22:38:42.81 0.3 undecidable manual S 131 25.9518 111 0.09 73
IV.FDMO.HHZ. 2023-09-24T22:38:42.99 0.3 undecidable manual S 358 27.9498 50 -0.32 69
IV.LNSS.HHZ. 2023-09-24T22:38:41.34 0.3 undecidable manual S 193 20.6682 115 0.29 71
IV.MMO1.EHZ. 2023-09-24T22:38:41.40 0.1 undecidable manual S 56 22.6551 113 -0.26 95
IV.MF5.EHE. 2023-09-24T22:38:40.74 0.1 undecidable manual P 53 37.1295 50 0.32 91
IV.GUMA.HHZ. 2023-09-24T22:38:40.42 0.1 undecidable manual P 32 36.4413 50 0.11 95
IV.MC2.EHE. 2023-09-24T22:38:40.00 0.1 undecidable manual S 28 15.9729 121 0.41 93
7F.SIB1.EHE. 2023-09-24T22:38:40.53 0.1 undecidable manual S 49 18.6702 118 0.12 98
IV.GAVE.EHZ. 2023-09-24T22:38:40.85 0.1 undecidable manual S 238 19.4694 117 0.2 96
7F.SIB2.EHE. 2023-09-24T22:38:40.62 0.1 undecidable manual S 55 20.5683 115 -0.39 92
IV.CSP1.EHZ. 2023-09-24T22:38:39.99 0.1 undecidable manual P 14 35.1426 50 -0.13 95
7F.SIB3.EHE. 2023-09-24T22:38:39.65 0.1 undecidable manual S 55 17.2716 119 -0.35 94
IV.CESI.HHN. 2023-09-24T22:38:39.00 0.1 undecidable manual P 327 28.9488 50 -0.16 96
IV.RM33.EHZ. 2023-09-24T22:38:39.36 0.1 undecidable manual P 162 32.0457 50 -0.28 93
IV.FDMO.HHZ. 2023-09-24T22:38:38.80 0.1 undecidable manual P 358 27.9498 50 -0.2 95
IV.SMA1.EHZ. 2023-09-24T22:38:38.64 1.0 positive manual P 131 25.9518 111 -0.02 25
7F.SIB1.EHE. 2023-09-24T22:38:37.45 0.1 undecidable manual P 49 18.6702 118 0.13 98
IV.GAVE.EHZ. 2023-09-24T22:38:37.58 0.1 undecidable manual P 238 19.4694 117 0.12 98
7F.SIB2.EHE. 2023-09-24T22:38:37.55 0.1 undecidable manual P 55 20.5683 115 -0.12 98
IV.LNSS.HHZ. 2023-09-24T22:38:37.63 0.1 undecidable manual P 193 20.6682 115 -0.06 99
7F.SIB3.EHE. 2023-09-24T22:38:37.03 0.1 undecidable manual P 55 17.2716 119 -0.06 100
IV.MMO1.EHZ. 2023-09-24T22:38:37.91 0.6 positive manual P 56 22.6551 113 -0.14 49
IV.MC2.EHE. 2023-09-24T22:38:37.00 0.1 undecidable manual P 28 15.9729 121 0.15 98
IV.NRCA.HHZ. 2023-09-24T22:38:36.85 0.1 undecidable manual S 15 5.5944 150 -0.16 100
IV.NRCA.HHZ. 2023-09-24T22:38:35.50 0.1 undecidable manual P 15 5.5944 150 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.00041975819999999996 0.0768 AML other m 2023-09-24T22:38:36.92
IV.NRCA.HHE. ML:1.5 0.0005465 1.84 AML other m 2023-09-24T22:38:36.96
IV.NRCA.HNE. ML:1.5 0.0005050234499999999 0.1664 AML other m 2023-09-24T22:38:37.04
IV.NRCA.HNN. ML:1.4 0.000377934 0.0768 AML other m 2023-09-24T22:38:36.92
IV.LNSS.HHE. ML:0.9 0.000060614175000000005 0.1024 AML other m 2023-09-24T22:38:41.85
IV.LNSS.HHN. ML:0.8 0.000043211735 0.1792 AML other m 2023-09-24T22:38:41.69
IV.MMO1.EHE. ML:0.9 0.00005227186 0.2432 AML other m 2023-09-24T22:38:41.58
IV.MMO1.EHN. ML:0.9 0.00004775704500000001 0.2048 AML other m 2023-09-24T22:38:41.56
IV.SMA1.EHN. ML:0.8 0.000032745371500000005 0.2176 AML other m 2023-09-24T22:38:43.51
IV.FDMO.HHN. ML:0.6 0.0000211396 0.3456 AML other m 2023-09-24T22:38:43.53
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