Earthquake with magnitude of ML 1.2 on date 17-08-2022 and time 13:39:48 (Italy) in region 3 km SW Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km SW Norcia (PG), on

  • 17-08-2022 11:39:48 (UTC)
  • 17-08-2022 13:39:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7710, 13.0760 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 3 4957 4957
Cascia PG 8 3217 8174
Preci PG 12 724 8898
Poggiodomo PG 13 117 9015
Cerreto di Spoleto PG 14 1075 10090
Castelsantangelo sul Nera MC 15 281 10371
Accumoli RI 16 667 11038
Monteleone di Spoleto PG 17 599 11637
Vallo di Nera PG 17 364 12001
Sellano PG 18 1079 13080
Visso MC 18 1107 14187
Arquata del Tronto AP 18 1178 15365
Cittareale RI 18 482 15847
Ussita MC 20 444 16291
Sant'Anatolia di Narco PG 20 564 16855

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
99 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 1.2 2022-08-17
11:39:48
42.7713 13.076 11 2022-08-17
12:01:47
Sala Sismica INGV-Roma 108646691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-17 11:39:48 ± 0.06
Latitude 42.7713 ± 0.0027
Longitude 13.0760 ± 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 108646691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28149
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 108646691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-17 12:01:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.VARA.EHZ. 2022-08-17T11:41:38.12 3.0 undecidable manual Sg 13.88 0
IV.ZEN8.EHZ. 2022-08-17T11:40:52.41 3.0 undecidable manual Pg 14.97 0
IV.EFIU.HHZ. 2022-08-17T11:40:50.28 3.0 undecidable manual Pn -0.61 0
IV.CMPR.HHZ. 2022-08-17T11:40:46.53 3.0 undecidable manual Sn -2.2 0
IV.MAGA.HHZ. 2022-08-17T11:40:42.69 3.0 positive manual Pn 3.13 0
IV.PLLN.EHZ. 2022-08-17T11:40:42.27 3.0 positive manual Pn -3.97 0
GU.RNCA.HHZ. 2022-08-17T11:40:40.46 3.0 positive manual Pn 0.93 0
IV.MSSA.HHZ. 2022-08-17T11:40:37.35 3.0 undecidable manual Pg 3.72 0
IV.PTCC.HHZ. 2022-08-17T11:40:35.68 3.0 undecidable manual Pn -3.77 0
IV.AGLI.HHZ. 2022-08-17T11:40:30.71 3.0 undecidable manual Pg -3.61 0
GU.CARD.HHZ. 2022-08-17T11:40:23.33 3.0 undecidable manual Pg -0.1 0
IV.RIBO.EHZ.01 2022-08-17T11:40:23.76 3.0 undecidable manual Sn -9.99 0
IV.MCRV.HHZ. 2022-08-17T11:40:21.37 3.0 undecidable manual Pg 8.72 0
IV.CMPR.HHZ. 2022-08-17T11:40:17.92 3.0 undecidable manual Pn -0.88 0
IV.ARVD.HHZ. 2022-08-17T11:40:16.63 3.0 undecidable manual S -0.57 0
IV.FOSV.EHZ. 2022-08-17T11:40:11.72 3.0 undecidable manual S -2.97 0
IV.NARO.HHZ. 2022-08-17T11:40:09.43 3.0 undecidable manual Pg 5.18 0
IV.FDMO.HHZ. 2022-08-17T11:39:59.05 0.6 undecidable manual S 2 29.4483 50 -0.21 46
IV.RM33.EHZ. 2022-08-17T11:39:59.71 0.1 undecidable manual S 159 31.2465 50 -0.03 96
IV.CESI.HHZ. 2022-08-17T11:39:59.34 0.1 undecidable manual S 332 29.4483 50 0.08 95
IV.SIB2.EHZ. 2022-08-17T11:39:57.21 3.0 undecidable manual S 0
IV.MC2.EHZ. 2022-08-17T11:39:56.18 0.6 undecidable manual S 31 18.0708 120 0.1 48
IV.CSP1.EHZ. 2022-08-17T11:39:56.13 3.0 undecidable manual P 1.2 0
IV.RM33.EHZ. 2022-08-17T11:39:55.12 0.1 undecidable manual P 159 31.2465 50 -0.01 96
IV.GAVE.HNN. 2022-08-17T11:39:55.80 0.1 undecidable manual S 239 17.2716 121 -0.03 98
IV.CESI.HHZ. 2022-08-17T11:39:54.76 0.1 undecidable manual P 332 29.4483 50 -0.09 95
IV.FDMO.HHZ. 2022-08-17T11:39:54.85 1.0 undecidable manual P 2 29.4483 50 0 24
IV.MC2.EHZ. 2022-08-17T11:39:53.25 0.1 undecidable manual P 31 18.0708 120 0.24 94
IV.SIB2.EHZ. 2022-08-17T11:39:53.69 3.0 undecidable manual P 0
IV.GAVE.HNN. 2022-08-17T11:39:52.97 0.3 undecidable manual P 239 17.2716 121 0.1 73
IV.VVLD.HHZ. 2022-08-17T11:39:52.10 3.0 positive manual P -0.36 0
IV.NRCA.HHZ. 2022-08-17T11:39:52.85 0.6 undecidable manual S 24 7.5813 144 -0.47 46
IV.NRCA.HHZ. 2022-08-17T11:39:51.46 0.1 negative manual P 24 7.5813 144 0.04 100
IV.CAMP.HHZ. 2022-08-17T11:39:46.34 3.0 undecidable manual P 0.15 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.0 0.0001485 1.88 AML other m 2022-08-17T11:39:53.94
IV.NRCA.HHE. ML:1.0 0.0001585 0.82 AML other m 2022-08-17T11:39:53.45
IV.ARVD.HHE. ML:1.4 0.000030600000000000005 0.92 AML other m 2022-08-17T11:40:20.91
IV.ARVD.HHN. ML:1.4 0.00002815 1.24 AML other m 2022-08-17T11:40:20.32
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