Earthquake with magnitude of ML 0.6 on date 29-09-2023 and time 23:30:36 (Italy) in region 5 km NW Norcia (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km NW Norcia (PG), on

  • 29-09-2023 21:30:36 (UTC)
  • 29-09-2023 23:30:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8250, 13.0490 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 5 4957 4957
Preci PG 6 724 5681
Cerreto di Spoleto PG 11 1075 6756
Castelsantangelo sul Nera MC 12 281 7037
Cascia PG 12 3217 10254
Sellano PG 12 1079 11333
Visso MC 12 1107 12440
Ussita MC 15 444 12884
Poggiodomo PG 16 117 13001
Vallo di Nera PG 16 364 13365
Monte Cavallo MC 19 145 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
62 Km SE of Perugia (166134 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
98 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 0.6 2023-09-29
21:30:36
42.8252 13.0492 10 2023-09-29
21:37:11
Sala Sismica INGV-Roma 121596101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-29 21:30:36 ± 0.13
Latitude 42.8252 ± 0.0081
Longitude 13.0492 ± 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 121596101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1206
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 133
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.69158
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:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 121596101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-29 21:37:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2023-09-29T21:30:49.55 0.6 undecidable manual P 278 76.7676 50 -0.71 39
IV.CSP1.EHZ. 2023-09-29T21:30:48.30 0.3 undecidable manual S 23 32.1456 50 0.12 74
IV.MMO1.EHZ. 2023-09-29T21:30:45.38 0.3 undecidable manual S 70 24.0537 112 -0.47 70
IV.FDMO.HHZ. 2023-09-29T21:30:45.56 0.3 undecidable manual S 8 23.6541 113 -0.17 75
IV.GAVE.HNZ. 2023-09-29T21:30:44.17 0.3 undecidable manual S 221 19.3695 117 -0.22 74
IV.CSP1.EHZ. 2023-09-29T21:30:43.55 0.1 undecidable manual P 23 32.1456 50 0.16 98
IV.MMO1.EHZ. 2023-09-29T21:30:42.12 1.0 undecidable manual P 70 24.0537 112 0.07 25
IV.FDMO.HHZ. 2023-09-29T21:30:42.11 0.1 undecidable manual P 8 23.6541 113 0.14 100
IV.GAVE.HNZ. 2023-09-29T21:30:41.44 0.1 undecidable manual P 221 19.3695 117 0.24 99
IV.NRCA.HHZ. 2023-09-29T21:30:40.83 0.3 undecidable manual S 80 5.3946 151 0.1 78
IV.NRCA.HHZ. 2023-09-29T21:30:39.48 0.6 undecidable manual P 80 5.3946 151 0.39 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.8 0.0000986 0.12 AML other m 2023-09-29T21:30:41.70
IV.NRCA.HHE. ML:0.8 0.0001072 0.08 AML other m 2023-09-29T21:30:42.04
IV.FDMO.HHE. ML:0.2 0.000008779999999999999 0.86 AML other m 2023-09-29T21:30:46.53
IV.FDMO.HHN. ML:0.4 0.0000155 0.18 AML other m 2023-09-29T21:30:46.54
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