Earthquake with magnitude of ML 0.9 on date 08-12-2023 and time 23:49:10 (Italy) in region 5 km NE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km NE Norcia (PG), on

  • 08-12-2023 22:49:10 (UTC)
  • 08-12-2023 23:49:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8340, 13.1280 at 12 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
Castelsantangelo sul Nera MC 7 281 5238
Preci PG 9 724 5962
Visso MC 11 1107 7069
Ussita MC 12 444 7513
Arquata del Tronto AP 15 1178 8691
Cascia PG 16 3217 11908
Montegallo AP 17 523 12431
Cerreto di Spoleto PG 17 1075 13506
Sellano PG 18 1079 14585
Montemonaco AP 18 604 15189
Accumoli RI 18 667 15856
Bolognola MC 20 142 15998

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
98 Km W of Pescara (121014 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 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 0.9 2023-12-08
22:49:10
42.8343 13.1285 12 2023-12-08
22:59:21
Sala Sismica INGV-Roma 123905091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-08 22:49:10 ± 0.06
Latitude 42.8343 ± 0.0036
Longitude 13.1285 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123905091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 427
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.01079
Epicentral distance of station farthest from the epicenter (degree) 0.40829
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 123905091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-08 22:59:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-12-08T22:49:21.19 0.6 undecidable manual S 12 29.2485 92 -0.05 49
IV.SMA1.EHZ. 2023-12-08T22:49:21.10 0.6 undecidable manual S 143 28.2495 92 0.14 48
IV.TERO.HHZ. 2023-12-08T22:49:19.15 1.0 undecidable manual P 121 45.3213 91 -0.23 23
IV.FDMO.HHZ. 2023-12-08T22:49:19.39 0.6 undecidable manual S 352 22.6551 93 -0.09 49
IV.MTRA.HNZ. 2023-12-08T22:49:19.59 0.6 undecidable manual S 111 23.4543 93 -0.11 48
IV.MF5.EHZ. 2023-12-08T22:49:17.24 0.1 undecidable manual P 58 31.8459 91 -0.06 96
7F.SIB1.HNZ. 2023-12-08T22:49:17.06 0.6 undecidable manual S 60 13.2756 108 0.05 49
IV.CSP1.EHZ. 2023-12-08T22:49:16.74 0.1 undecidable manual P 12 29.2485 92 -0.16 95
IV.SMA1.EHZ. 2023-12-08T22:49:16.68 1.0 positive manual P 143 28.2495 92 -0.06 24
IV.MTRA.HNZ. 2023-12-08T22:49:16.07 0.1 undecidable manual P 111 23.4543 93 0.06 97
7F.SIB3.EHZ. 2023-12-08T22:49:16.49 0.6 undecidable manual S 69 12.3765 112 -0.29 47
IV.MC2.EHZ. 2023-12-08T22:49:16.25 0.6 undecidable manual S 30 9.879 124 0.06 50
IT.MTCL.HGZ. 2023-12-08T22:49:15.53 0.1 undecidable manual P 329 20.5683 94 -0.04 98
IV.FDMO.HHZ. 2023-12-08T22:49:15.83 0.6 positive manual P 352 22.6551 93 -0.06 49
7F.SIB3.EHZ. 2023-12-08T22:49:14.32 0.1 undecidable manual P 69 12.3765 112 -0.01 100
7F.SIB1.HNZ. 2023-12-08T22:49:14.67 0.1 undecidable manual P 60 13.2756 108 0.21 96
IV.NRCA.HHZ. 2023-12-08T22:49:14.77 0.6 undecidable manual S 265 1.1988 173 -0.19 48
IV.MC2.EHZ. 2023-12-08T22:49:14.24 0.1 undecidable manual P 30 9.879 124 0.26 95
7F.SIB2.EHZ. 2023-12-08T22:49:14.79 0.1 undecidable manual P 66 15.5733 100 -0.01 99
IV.NRCA.HHZ. 2023-12-08T22:49:13.42 1.0 undecidable manual P 265 1.1988 173 0.14 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.00022600000000000002 0.14 AML other m 2023-12-08T22:49:14.95
IV.NRCA.HHE. ML:1.1 0.00022 1.9 AML other m 2023-12-08T22:49:14.00
IV.NRCA.HNE. ML:1.2 0.00023700345 0.1152 AML other m 2023-12-08T22:49:15.00
IV.NRCA.HNN. ML:1.2 0.00026211815 0.9216 AML other m 2023-12-08T22:49:15.46
IV.FDMO.HHE. ML:0.4 0.000017165831349999996 0.128 AML other m 2023-12-08T22:49:19.64
IV.FDMO.HHN. ML:0.4 0.00001345554595 0.0896 AML other m 2023-12-08T22:49:19.93
IV.SMA1.EHE. ML:0.7 0.000022732025 0.9344 AML other m 2023-12-08T22:49:27.32
IV.SMA1.EHN. ML:0.8 0.000027706755 2.1376 AML other m 2023-12-08T22:49:21.56
IV.TERO.HHE. ML:0.7 0.000013481373499999999 1.0368 AML other m 2023-12-08T22:49:18.40
IV.TERO.HHN. ML:0.2 0.0000048064745 0.7168 AML other m 2023-12-08T22:49:25.25
IV.TERO.HNE. ML:1.5 0.000091743475 0.8064 AML other m 2023-12-08T22:49:23.60
IV.TERO.HNN. ML:1.5 0.00010199755999999999 0.6528 AML other m 2023-12-08T22:49:23.78
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