Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 28-09-2022 and time 08:17:37 (Italy) in region 4 km SE Preci (PG)

A magnitude ML 0.9 earthquake occured in region: 4 km SE Preci (PG), on

  • 28-09-2022 06:17:37 (UTC)
  • 28-09-2022 08:17:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8460, 13.0580 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Preci PG 4 724 724
Norcia PG 7 4957 5681
Castelsantangelo sul Nera MC 10 281 5962
Visso MC 10 1107 7069
Sellano PG 12 1079 8148
Cerreto di Spoleto PG 12 1075 9223
Ussita MC 13 444 9667
Cascia PG 15 3217 12884
Monte Cavallo MC 17 145 13029
Poggiodomo PG 18 117 13146
Vallo di Nera PG 18 364 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
62 Km E of Perugia (166134 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
98 Km N 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 2022-09-28
06:17:37		 42.8462 13.0575 10 2022-09-28
06:25:23		 Sala Sismica INGV-Roma 110245821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-28 06:17:37 ± 0.04
Latitude 42.8462 ± 0.0018
Longitude 13.0575 ± 0.0037
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 110245821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 229
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 110245821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-28 06:25:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATPI.EHZ. 2022-09-28T06:17:51.98 3.0 positive manual P -0.2 0
IV.CSP1.EHZ. 2022-09-28T06:17:48.32 0.6 undecidable manual S 24 29.748 50 -0.12 48
IV.MML1.EHE. 2022-09-28T06:17:48.51 0.3 undecidable manual S 347 30.4473 50 -0.12 72
IV.LNSS.HHZ. 2022-09-28T06:17:47.88 0.3 undecidable manual S 183 27.0507 50 0.17 71
IV.MMO1.EHZ. 2022-09-28T06:17:46.45 0.3 undecidable manual S 75 22.6551 114 -0.02 74
IV.CESI.HHZ. 2022-09-28T06:17:46.08 0.6 undecidable manual S 325 21.5673 115 -0.04 49
IV.GAVE.HNZ. 2022-09-28T06:17:45.89 0.6 undecidable manual S 218 21.6672 115 -0.26 47
IV.FDMO.HHZ. 2022-09-28T06:17:45.87 0.6 undecidable manual S 7 21.2676 116 -0.16 48
7F.SIB2.EHZ. 2022-09-28T06:17:45.67 0.6 undecidable manual S 76 20.6682 116 -0.16 48
IV.RM33.EHZ. 2022-09-28T06:17:44.60 3.0 undecidable manual P 2.86 0
IV.MML1.EHE. 2022-09-28T06:17:44.15 0.1 undecidable manual P 347 30.4473 50 0.08 97
7F.SIB3.EHZ. 2022-09-28T06:17:44.66 0.3 undecidable manual S 79 17.5713 120 -0.24 72
IV.MC2.EHZ. 2022-09-28T06:17:43.84 0.3 undecidable manual S 56 12.876 128 0.29 71
IV.LNSS.HHZ. 2022-09-28T06:17:43.44 0.1 undecidable manual P 183 27.0507 50 -0.1 97
IV.CSP1.EHZ. 2022-09-28T06:17:43.98 0.1 undecidable manual P 24 29.748 50 0.01 98
IV.CESI.HHZ. 2022-09-28T06:17:42.67 0.1 positive manual P 325 21.5673 115 0.05 99
IV.MMO1.EHZ. 2022-09-28T06:17:42.78 1.0 undecidable manual P 75 22.6551 114 -0.05 25
IV.GAVE.HNZ. 2022-09-28T06:17:42.66 0.1 undecidable manual P 218 21.6672 115 0.02 99
IV.FDMO.HHZ. 2022-09-28T06:17:42.61 0.3 positive manual P 7 21.2676 116 0.04 74
7F.SIB2.EHZ. 2022-09-28T06:17:42.45 0.1 undecidable manual P 76 20.6682 116 -0.01 100
IV.NRCA.HHZ. 2022-09-28T06:17:41.56 0.6 undecidable manual S 107 4.7952 155 -0.2 49
IV.MC2.EHZ. 2022-09-28T06:17:41.51 0.6 undecidable manual P 56 12.876 128 0.37 47
7F.SIB3.EHZ. 2022-09-28T06:17:41.93 0.1 undecidable manual P 79 17.5713 120 0.01 100
IV.NRCA.HHZ. 2022-09-28T06:17:40.25 0.1 undecidable manual P 107 4.7952 155 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.5 0.0005335000000000001 0.12 AML other m 2022-09-28T06:17:41.62
IV.NRCA.HHE. ML:1.2 0.0002855 0.34 AML other m 2022-09-28T06:17:41.72
IV.NRCA.HNE. ML:1.3 0.0002985 1.18 AML other m 2022-09-28T06:17:41.33
IV.NRCA.HNN. ML:1.5 0.0005045 1.12 AML other m 2022-09-28T06:17:42.68
IV.MC2.EHE. ML:1.0 0.00009914364 0.16 AML other m 2022-09-28T06:17:44.92
IV.MC2.EHN. ML:1.1 0.000132850365 0.24 AML other m 2022-09-28T06:17:44.20
IV.FDMO.HHE. ML:0.8 0.000046598805 0.24 AML other m 2022-09-28T06:17:46.06
IV.FDMO.HHN. ML:0.8 0.00003928794 0.4032 AML other m 2022-09-28T06:17:46.01
IV.CESI.HHE. ML:0.6 0.00002480139 0.1408 AML other m 2022-09-28T06:17:46.52
IV.CESI.HHN. ML:0.8 0.00004149422 0.2816 AML other m 2022-09-28T06:17:47.75
IV.MMO1.EHE. ML:0.8 0.000038101509999999995 0.1792 AML other m 2022-09-28T06:17:46.74
IV.MMO1.EHN. ML:0.8 0.000044796185 0.2976 AML other m 2022-09-28T06:17:47.01
IV.LNSS.HHE. ML:0.7 0.000025477076999999997 0.1184 AML other m 2022-09-28T06:17:48.64
IV.LNSS.HHN. ML:0.4 0.0000149275125 0.3584 AML other m 2022-09-28T06:17:48.08
IV.CSP1.EHE. ML:1.0 0.000051904325 0.2176 AML other m 2022-09-28T06:17:48.83
IV.CSP1.EHN. ML:0.9 0.000041579608500000004 0.4384 AML other m 2022-09-28T06:17:48.76
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