Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-08-2022 and time 17:47:52 (UTC) in region 2 km NE Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km NE Norcia (PG), on

  • 28-08-2022 17:47:52 (UTC)
  • 28-08-2022 19:47:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8080, 13.1100 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
Norcia PG 2 4957 4957
Preci PG 10 724 5681
Castelsantangelo sul Nera MC 10 281 5962
Cascia PG 13 3217 9179
Visso MC 14 1107 10286
Ussita MC 16 444 10730
Arquata del Tronto AP 16 1178 11908
Cerreto di Spoleto PG 16 1075 12983
Accumoli RI 17 667 13650
Sellano PG 17 1079 14729
Poggiodomo PG 18 117 14846
Montegallo AP 19 523 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 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 1.0 2022-08-28
17:47:52		 42.8078 13.1097 11 2022-08-28
17:57:52		 Sala Sismica INGV-Roma 109068431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-28 17:47:52 ± 0.09
Latitude 42.8078 ± 0.0045
Longitude 13.1097 ± 0.0086
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109068431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 728
Semi-minor axis of confidence ellipse (meter) 418
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40739
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 109068431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-28 17:57:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2022-08-28T17:48:21.43 3.0 undecidable manual S -0.2 0
IV.MF5.EHZ. 2022-08-28T17:48:05.09 0.6 undecidable manual S 55 34.743 50 0.55 44
IV.RM33.EHZ. 2022-08-28T17:48:04.35 0.6 undecidable manual S 165 34.2435 50 -0.05 49
IV.MML1.EHZ. 2022-08-28T17:48:04.74 0.6 undecidable manual S 342 35.742 50 -0.05 49
IV.CESI.HHZ. 2022-08-28T17:48:02.52 0.6 undecidable manual S 323 27.4503 50 -0.08 50
IV.LNSS.HHZ. 2022-08-28T17:48:01.57 0.6 undecidable manual S 194 23.4543 50 0.05 50
IV.MOMA.HHZ. 2022-08-28T17:48:01.42 0.1 undecidable manual P 270 43.9227 50 0.48 89
IV.FDMO.HHZ. 2022-08-28T17:48:01.58 0.6 undecidable manual S 356 25.4523 50 -0.47 46
IV.ASSB.HHZ. 2022-08-28T17:48:00.67 0.1 undecidable manual P 306 44.9217 50 -0.43 90
IV.TERO.HHZ. 2022-08-28T17:48:00.63 0.1 undecidable manual P 117 45.2214 50 -0.51 88
IV.MML1.EHZ. 2022-08-28T17:47:59.75 0.1 undecidable manual P 342 35.742 50 0.08 98
IV.RM33.EHZ. 2022-08-28T17:47:59.33 0.1 undecidable manual P 165 34.2435 50 -0.12 97
IV.MF5.EHZ. 2022-08-28T17:47:59.76 0.1 undecidable manual P 55 34.743 50 0.23 95
IV.MC2.EHZ. 2022-08-28T17:47:58.51 0.6 undecidable manual S 29 13.1757 129 -0.02 51
IV.CESI.HHZ. 2022-08-28T17:47:58.56 0.6 negative manual P 323 27.4503 50 0.15 49
IV.FDMO.HHZ. 2022-08-28T17:47:57.98 0.6 positive manual P 356 25.4523 50 -0.11 50
IV.LNSS.HHZ. 2022-08-28T17:47:57.94 0.1 undecidable manual P 194 23.4543 50 0.16 98
IV.NRCA.HHZ. 2022-08-28T17:47:56.23 0.6 undecidable manual S 8 2.8971 165 -0.24 50
IV.MC2.EHZ. 2022-08-28T17:47:56.23 0.1 positive manual P 29 13.1757 129 0.17 100
IV.NRCA.HHZ. 2022-08-28T17:47:54.95 0.6 undecidable manual P 8 2.8971 165 0.08 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.1 0.00204 0.68 AML other m 2022-08-28T17:47:56.39
IV.NRCA.HNE. ML:2.0 0.001875 0.16 AML other m 2022-08-28T17:47:56.39
IV.NRCA.HHN. ML:1.7 0.0009339999999999999 0.8 AML other m 2022-08-28T17:47:56.73
IV.NRCA.HNN. ML:1.7 0.0008814999999999999 1.08 AML other m 2022-08-28T17:47:56.34
IV.MC2.EHN. ML:1.6 0.0003725 0.2 AML other m 2022-08-28T17:47:58.78
IV.MC2.EHE. ML:1.6 0.000367 0.92 AML other m 2022-08-28T17:47:59.52
IV.FDMO.HHN. ML:0.9 0.000047550000000000004 0.22 AML other m 2022-08-28T17:48:02.13
IV.LNSS.HHN. ML:1.4 0.00015699999999999997 0.36 AML other m 2022-08-28T17:48:02.39
IV.LNSS.HHE. ML:1.2 0.000111 0.16 AML other m 2022-08-28T17:48:02.61
IV.CESI.HHN. ML:1.0 0.000048599999999999995 0.26 AML other m 2022-08-28T17:48:02.78
IV.FDMO.HHE. ML:0.9 0.000046700000000000003 0.12 AML other m 2022-08-28T17:48:02.89
IV.CESI.HHE. ML:0.8 0.00003105 1.08 AML other m 2022-08-28T17:48:04.55
IV.MF5.EHE. ML:1.1 0.00005624999999999999 0.26 AML other m 2022-08-28T17:48:05.70
IV.MF5.EHN. ML:1.1 0.000049250000000000004 0.2 AML other m 2022-08-28T17:48:05.71
IV.RM33.EHN. ML:0.8 0.0000242 0.14 AML other m 2022-08-28T17:48:05.95
IV.RM33.EHE. ML:0.8 0.000024399999999999997 1.28 AML other m 2022-08-28T17:48:06.11
IV.MML1.EHE. ML:0.7 0.00002045 0.98 AML other m 2022-08-28T17:48:06.50
IV.MML1.EHN. ML:0.7 0.0000219 0.18 AML other m 2022-08-28T17:48:07.17
IV.ASSB.HHE. ML:0.8 0.0000188 1.2 AML other m 2022-08-28T17:48:08.10
IV.MOMA.HHN. ML:0.7 0.00001585 1.38 AML other m 2022-08-28T17:48:09.02
IV.ASSB.HHN. ML:0.9 0.000024750000000000002 0.42 AML other m 2022-08-28T17:48:09.39
IV.MOMA.HHE. ML:0.9 0.00002535 0.36 AML other m 2022-08-28T17:48:09.80
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