Earthquake with magnitude of ML 1.3 on date 11-09-2021 and time 12:43:20 (UTC) in region 5 km W Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km W Norcia (PG), on

  • 11-09-2021 12:43:20 (UTC)
  • 11-09-2021 14:43:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8110, 13.0420 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 5 4957 4957
Preci PG 8 724 5681
Cerreto di Spoleto PG 10 1075 6756
Cascia PG 10 3217 9973
Sellano PG 13 1079 11052
Castelsantangelo sul Nera MC 13 281 11333
Poggiodomo PG 14 117 11450
Visso MC 14 1107 12557
Vallo di Nera PG 15 364 12921
Ussita MC 17 444 13365
Sant'Anatolia di Narco PG 19 564 13929
Monteleone di Spoleto PG 19 599 14528

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SE of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
98 Km SW of Ancona (100861 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 1.3 2021-09-11
12:43:20
42.8108 13.0422 11 2021-09-11
12:48:41
Sala Sismica INGV-Roma 95303671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-11 12:43:20 ± 0.05
Latitude 42.8108 ± 0.0036
Longitude 13.0422 ± 0.0061
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 95303671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 622
Semi-minor axis of confidence ellipse (meter) 149
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 125
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 95303671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-11 12:48:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHZ. 2021-09-11T12:43:34.03 3.0 undecidable manual S -1.23 0
IV.MF5.EHZ. 2021-09-11T12:43:28.40 3.0 negative manual P 0.21 0
IV.MC2.EHZ. 2021-09-11T12:43:27.30 0.6 undecidable manual S 47 16.3725 123 0.19 48
IV.GUMA.HHZ. 2021-09-11T12:43:27.82 3.0 negative manual P 0.1 0
IV.GAVE.EHZ. 2021-09-11T12:43:27.49 0.6 undecidable manual S 223 17.871 121 -0.06 49
IV.MML1.EHZ. 2021-09-11T12:43:27.11 1.0 undecidable manual P 350 34.0437 50 0.03 24
IV.RM33.EHZ. 2021-09-11T12:43:27.59 3.0 undecidable manual P -0.17 0
IV.CSP1.EHZ. 2021-09-11T12:43:27.02 0.3 positive manual P 23 33.8439 50 -0.03 72
IV.ARRO.EHZ. 2021-09-11T12:43:27.14 3.0 negative manual P -0.14 0
IV.SMA1.EHZ. 2021-09-11T12:43:26.81 3.0 undecidable manual P -0.11 0
IV.MTRA.EHZ. 2021-09-11T12:43:26.62 3.0 undecidable manual P -0.01 0
IV.MMO1.EHZ. 2021-09-11T12:43:25.64 3.0 positive manual P -0.21 0
IV.CESI.HHZ. 2021-09-11T12:43:25.58 0.3 undecidable manual P 333 24.2535 50 0.01 73
IV.FDMO.HHZ. 2021-09-11T12:43:25.66 0.1 positive manual P 8 25.2525 50 -0.07 96
IV.LNSS.HHZ. 2021-09-11T12:43:25.34 0.3 undecidable manual P 180 23.0547 50 -0.04 73
IT.MTCL.HGE. 2021-09-11T12:43:24.93 0.3 undecidable manual P 350 20.5683 117 -0.06 73
IV.MC2.EHZ. 2021-09-11T12:43:24.39 0.3 undecidable manual P 47 16.3725 123 0.14 72
IV.GAVE.EHZ. 2021-09-11T12:43:24.61 0.1 positive manual P 223 17.871 121 0.1 97
IV.NRCA.HNZ. 2021-09-11T12:43:24.27 0.6 undecidable manual S 67 6.3936 149 -0.37 47
IV.NRCA.HNZ. 2021-09-11T12:43:22.87 0.1 negative manual P 67 6.3936 149 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.5 0.00024160025000000002 0.1216 AML other m 2021-09-11T12:43:28.49
IV.GAVE.EHN. ML:1.5 0.0002465 0.18 AML other m 2021-09-11T12:43:28.53
IV.LNSS.HHE. ML:1.3 0.00013693525 0.0768 AML other m 2021-09-11T12:43:29.10
IV.LNSS.HHN. ML:1.6 0.000236 0.18 AML other m 2021-09-11T12:43:29.39
IV.FDMO.HHN. ML:1.4 0.0001288411 0.16 AML other m 2021-09-11T12:43:30.04
IV.FDMO.HHE. ML:1.0 0.00006025 0.56 AML other m 2021-09-11T12:43:30.32
IV.CESI.HHE. ML:0.9 0.00004364423 0.1024 AML other m 2021-09-11T12:43:30.35
IV.CESI.HHN. ML:1.0 0.00006483915 0.1792 AML other m 2021-09-11T12:43:30.93
IV.MTRA.EHN. ML:1.4 0.0001094 0.26 AML other m 2021-09-11T12:43:31.19
IV.MML1.EHN. ML:1.0 0.0000454 0.18 AML other m 2021-09-11T12:43:32.42
IV.MTRA.EHE. ML:1.2 0.00008108841 0.1024 AML other m 2021-09-11T12:43:32.43
IV.MML1.EHE. ML:1.1 0.00005095 0.16 AML other m 2021-09-11T12:43:32.52
IV.RM33.EHN. ML:0.8 0.00002735 0.76 AML other m 2021-09-11T12:43:32.41
IV.RM33.EHE. ML:0.8 0.00002555 0.14 AML other m 2021-09-11T12:43:34.31
IV.SMA1.EHE. ML:0.9 0.00004191491 0.3008 AML other m 2021-09-11T12:43:36.10
IV.SMA1.EHN. ML:1.0 0.00005093568 0.1408 AML other m 2021-09-11T12:43:32.26
IV.GAVE.HNE. ML:1.5 0.0002600306 0.1344 AML other m 2021-09-11T12:43:28.48
IV.GAVE.HNN. ML:1.2 0.00014357039999999998 0.5504 AML other m 2021-09-11T12:43:29.13
IV.LNSS.HNE. ML:1.3 0.00013527786499999999 0.1408 AML other m 2021-09-11T12:43:29.58
IV.LNSS.HNN. ML:1.6 0.00023563805000000003 0.1792 AML other m 2021-09-11T12:43:29.30
IV.MTRA.HNE. ML:1.4 0.000124790145 0.3008 AML other m 2021-09-11T12:43:33.67
IV.MTRA.HNN. ML:1.4 0.000121094205 0.2752 AML other m 2021-09-11T12:43:31.19
IV.CSP1.EHE. ML:1.4 0.00010159227000000002 0.1792 AML other m 2021-09-11T12:43:34.17
IV.CSP1.EHN. ML:1.4 0.000116173005 0.224 AML other m 2021-09-11T12:43:34.43
IV.MML1.HNE. ML:1.3 0.000078110235 0.5056 AML other m 2021-09-11T12:43:36.28
IV.MML1.HNN. ML:1.3 0.00009071196 0.6272 AML other m 2021-09-11T12:43:42.71
IV.RM33.HNE. ML:1.8 0.00023204650000000003 1.12 AML other m 2021-09-11T12:43:32.46
IV.RM33.HNN. ML:1.9 0.00029867155 1.0816 AML other m 2021-09-11T12:43:38.78
IV.MF5.EHE. ML:1.0 0.000035166898000000005 0.3008 AML other m 2021-09-11T12:43:35.02
IV.MF5.EHN. ML:0.9 0.00002944911 0.16 AML other m 2021-09-11T12:43:35.35
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