Earthquake with magnitude of ML 0.9 on date 30-03-2023 and time 22:19:28 (UTC) in region 2 km E Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 2 km E Norcia (PG), on

  • 30-03-2023 22:19:28 (UTC)
  • 31-03-2023 00:19:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7950, 13.1130 at 11 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 2 4957 4957
Preci PG 11 724 5681
Castelsantangelo sul Nera MC 12 281 5962
Cascia PG 12 3217 9179
Arquata del Tronto AP 15 1178 10357
Visso MC 15 1107 11464
Accumoli RI 16 667 12131
Cerreto di Spoleto PG 16 1075 13206
Ussita MC 17 444 13650
Poggiodomo PG 17 117 13767
Sellano PG 18 1079 14846
Montegallo AP 19 523 15369
Cittareale RI 20 482 15851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km W of Pescara (121014 inhabitants)
100 Km NW 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 2023-03-30
22:19:28
42.7953 13.1127 11 2023-03-30
22:28:48
Sala Sismica INGV-Roma 115897941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-30 22:19:28 ± 0.06
Latitude 42.7953 ± 0.0036
Longitude 13.1127 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115897941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
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) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.40020
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 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 115897941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-30 22:28:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2023-03-30T22:19:42.83 0.3 undecidable manual S 115 44.4222 50 0.01 71
IV.RM33.EHZ. 2023-03-30T22:19:39.80 0.1 undecidable manual S 165 32.8449 50 0.06 96
IV.CESI.HHZ. 2023-03-30T22:19:38.57 0.1 undecidable manual S 324 28.749 50 -0.08 96
IV.FDMO.HHZ. 2023-03-30T22:19:37.99 0.1 undecidable manual S 356 26.8509 50 -0.14 96
IV.SMA1.EHZ. 2023-03-30T22:19:37.47 0.1 undecidable manual S 135 25.752 50 -0.38 91
IV.MMO1.EHZ. 2023-03-30T22:19:36.67 0.1 undecidable manual S 56 20.868 50 0.12 97
IV.LNSS.HHZ. 2023-03-30T22:19:36.74 0.1 undecidable manual S 195 22.1556 50 -0.15 96
IV.GAVE.HNZ. 2023-03-30T22:19:36.59 0.1 undecidable manual S 237 21.1677 50 -0.03 99
IV.TERO.HHZ. 2023-03-30T22:19:36.88 0.3 undecidable manual P 115 44.4222 50 0.14 69
7F.SIB2.EHZ. 2023-03-30T22:19:35.86 0.1 undecidable manual S 56 18.87 120 -0.09 98
7F.SIB1.EHZ. 2023-03-30T22:19:35.71 0.3 undecidable manual S 49 16.872 122 0.33 70
IV.RM33.EHZ. 2023-03-30T22:19:35.07 0.1 undecidable manual P 165 32.8449 50 0.11 95
7F.SIB3.EHZ. 2023-03-30T22:19:34.95 0.1 undecidable manual S 55 15.5733 125 -0.04 100
IV.SMA1.EHZ. 2023-03-30T22:19:34.17 0.1 undecidable manual P 135 25.752 50 0.3 93
IV.CESI.HHZ. 2023-03-30T22:19:34.34 0.1 undecidable manual P 324 28.749 50 0.01 98
IV.FDMO.HHZ. 2023-03-30T22:19:34.13 0.1 undecidable manual P 356 26.8509 50 0.09 96
IV.GAVE.HNZ. 2023-03-30T22:19:33.26 0.1 undecidable manual P 237 21.1677 50 0.09 97
IV.MMO1.EHZ. 2023-03-30T22:19:33.19 0.1 undecidable manual P 56 20.868 50 0.07 98
IV.LNSS.HHZ. 2023-03-30T22:19:33.36 0.1 undecidable manual P 195 22.1556 50 0.04 98
7F.SIB2.EHZ. 2023-03-30T22:19:32.82 0.1 undecidable manual P 56 18.87 120 0.04 99
IV.NRCA.HHZ. 2023-03-30T22:19:32.33 0.1 undecidable manual S 2 4.1958 158 -0.11 100
7F.SIB1.EHZ. 2023-03-30T22:19:32.74 0.3 undecidable manual P 49 16.872 122 0.3 71
7F.SIB3.EHZ. 2023-03-30T22:19:31.39 0.1 undecidable manual P 55 15.5733 125 -0.83 79
IV.NRCA.HHZ. 2023-03-30T22:19:30.96 0.1 undecidable manual P 2 4.1958 158 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.5 0.000494 0.08 AML other m 2023-03-30T22:19:32.38
IV.NRCA.HHE. ML:1.3 0.00033899999999999995 0.1 AML other m 2023-03-30T22:19:32.43
IV.LNSS.HHE. ML:0.9 0.000049676505 0.128 AML other m 2023-03-30T22:19:37.27
IV.LNSS.HHN. ML:0.8 0.00004205 0.72 AML other m 2023-03-30T22:19:38.66
IV.NRCA.HNE. ML:1.3 0.00035370735 0.0896 AML other m 2023-03-30T22:19:32.42
IV.NRCA.HNN. ML:1.4 0.0004512806 0.0768 AML other m 2023-03-30T22:19:32.38
IV.MMO1.EHE. ML:0.6 0.000029010935000000003 0.1536 AML other m 2023-03-30T22:19:36.83
IV.MMO1.EHN. ML:0.7 0.00003687207 0.8192 AML other m 2023-03-30T22:19:37.06
IV.FDMO.HHE. ML:0.7 0.000026949965 0.256 AML other m 2023-03-30T22:19:38.22
IV.FDMO.HHN. ML:0.7 0.00002377813 0.3584 AML other m 2023-03-30T22:19:38.38
IV.CESI.HHE. ML:0.5 0.000017252015 0.1408 AML other m 2023-03-30T22:19:38.72
IV.CESI.HHN. ML:0.8 0.000030683255 0.4608 AML other m 2023-03-30T22:19:38.82
IV.RM33.EHE. ML:0.8 0.000022880959999999997 1.1648 AML other m 2023-03-30T22:19:40.21
IV.RM33.EHN. ML:0.8 0.00003033576 0.64 AML other m 2023-03-30T22:19:40.33
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