Earthquake with magnitude of ML 0.9 on date 21-09-2022 and time 00:16:00 (UTC) in region 1 km SE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 1 km SE Norcia (PG), on

  • 21-09-2022 00:16:00 (UTC)
  • 21-09-2022 02:16:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7840, 13.1030 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
Accumoli RI 15 667 9846
Cerreto di Spoleto PG 16 1075 10921
Poggiodomo PG 16 117 11038
Arquata del Tronto AP 16 1178 12216
Visso MC 17 1107 13323
Ussita MC 18 444 13767
Sellano PG 19 1079 14846
Cittareale RI 19 482 15328
Monteleone di Spoleto PG 19 599 15927
Vallo di Nera PG 20 364 16291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 Km SW of Ancona (100861 inhabitants)
100 Km W of Chieti (51815 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 2022-09-21
00:16:00
42.7838 13.103 10 2022-09-21
00:21:39
Sala Sismica INGV-Roma 109947271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-21 00:16:00 ± 0.06
Latitude 42.7838 ± 0.0027
Longitude 13.1030 ± 0.0061
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 109947271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 519
Semi-minor axis of confidence ellipse (meter) 188
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.05036
Epicentral distance of station farthest from the epicenter (degree) 0.40200
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 109947271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-21 00:21:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-09-21T00:16:12.32 0.3 undecidable manual S 14 0.3166 50 -0.13 72
IV.RM33.EHZ. 2022-09-21T00:16:11.35 0.3 undecidable manual S 163 0.2869 50 -0.21 71
IV.SMA1.EHZ. 2022-09-21T00:16:10.03 0.3 undecidable manual S 132 0.2293 111 0.19 72
IV.CESI.HHZ. 2022-09-21T00:16:10.77 0.3 undecidable manual S 327 0.2644 50 -0.13 73
IV.TERO.HHZ. 2022-09-21T00:16:09.29 0.6 positive manual P 113 0.4020 50 0.5 44
IV.LNSS.HHZ. 2022-09-21T00:16:08.20 0.3 undecidable manual S 194 0.1871 116 -0.13 74
IV.CSP1.EHZ. 2022-09-21T00:16:07.41 0.3 undecidable manual P 14 0.3166 50 0.07 73
IV.ARRO.EHZ. 2022-09-21T00:16:07.86 1.0 positive manual P 231 0.3211 50 0.44 22
IV.MC2.EHZ. 2022-09-21T00:16:07.11 0.3 undecidable manual S 26 0.1421 122 0.28 72
7F.SIB1.EHE. 2022-09-21T00:16:07.65 0.3 undecidable manual S 48 0.1655 118 0.06 75
IV.RM33.EHZ. 2022-09-21T00:16:06.74 0.3 undecidable manual P 163 0.2869 50 -0.09 73
7F.SIB3.EHE. 2022-09-21T00:16:06.80 0.1 undecidable manual S 53 0.1529 120 -0.37 94
IV.CESI.HHZ. 2022-09-21T00:16:06.43 0.3 positive manual P 327 0.2644 50 -0.01 74
IV.LNSS.HHZ. 2022-09-21T00:16:05.08 0.3 undecidable manual P 194 0.1871 116 0.12 74
IV.SMA1.EHZ. 2022-09-21T00:16:05.69 0.1 undecidable manual P 132 0.2293 111 -0.14 97
IV.MC2.EHZ. 2022-09-21T00:16:04.44 0.3 undecidable manual P 26 0.1421 122 0.35 71
7F.SIB1.EHE. 2022-09-21T00:16:04.62 0.1 undecidable manual P 48 0.1655 118 0.09 99
IV.NRCA.HHZ. 2022-09-21T00:16:04.07 0.1 undecidable manual S 9 0.0504 151 -0.24 98
7F.SIB3.EHE. 2022-09-21T00:16:04.22 0.1 undecidable manual P 53 0.1529 120 -0.07 100
IV.NRCA.HHZ. 2022-09-21T00:16:02.83 0.3 undecidable manual P 9 0.0504 151 0.19 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.00033350000000000003 0.16 AML other m 2022-09-21T00:16:04.22
IV.NRCA.HHN. ML:1.3 0.0003375 0.14 AML other m 2022-09-21T00:16:04.12
IV.LNSS.HHN. ML:0.7 0.00003735 1.16 AML other m 2022-09-21T00:16:08.85
IV.LNSS.HHE. ML:0.8 0.000045600000000000004 1.06 AML other m 2022-09-21T00:16:09.75
IV.NRCA.HNE. ML:1.3 0.00034234414999999996 0.16 AML other m 2022-09-21T00:16:04.13
IV.NRCA.HNN. ML:1.3 0.0003110087 0.13 AML other m 2022-09-21T00:16:04.19
IV.SMA1.EHN. ML:0.5 0.000018720594999999998 0.76 AML other m 2022-09-21T00:16:10.76
IV.CESI.HHN. ML:0.5 0.00001732987 0.3 AML other m 2022-09-21T00:16:11.02
IV.RM33.EHE. ML:0.6 0.000019682145000000002 0.86 AML other m 2022-09-21T00:16:12.02
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