Earthquake with magnitude of ML 1.2 on date 08-11-2021 and time 09:15:41 (UTC) in region 5 km NW Spoleto (PG)

A magnitude ML 1.2 earthquake occured in region: 5 km NW Spoleto (PG), on

  • 08-11-2021 09:15:41 (UTC)
  • 08-11-2021 10:15:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7780, 12.7100 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Spoleto PG 5 38218 38218
Castel Ritaldi PG 6 3278 41496
Campello sul Clitunno PG 7 2442 43938
Sant'Anatolia di Narco PG 11 564 44502
Trevi PG 12 8469 52971
Scheggino PG 12 461 53432
Giano dell'Umbria PG 13 3846 57278
Vallo di Nera PG 13 364 57642
Montefalco PG 14 5679 63321
Massa Martana PG 15 3770 67091
Acquasparta TR 16 4778 71869
Cerreto di Spoleto PG 18 1075 72944
Ferentillo TR 19 1913 74857
Bevagna PG 19 5081 79938
Gualdo Cattaneo PG 19 6155 86093
Poggiodomo PG 20 117 86210
Foligno PG 20 57155 143365

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Foligno (57155 inhabitants)
25 Km N of Terni (111501 inhabitants)
45 Km SE of Perugia (166134 inhabitants)
64 Km NE of Viterbo (67173 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
82 Km W of Teramo (54892 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
100 Km N of Roma (2864731 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
Bulletin
Rev1000
ML 1.2 2021-11-08
09:15:41
42.7775 12.7098 11 2022-03-30
13:04:15
Bollettino Sismico Italiano INGV 97375981
Reviewed
Rev100
ML 1.1 2021-11-08
09:15:41
42.7918 12.7218 10 2021-11-08
09:19:39
Sala Sismica INGV-Roma 97338421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-08 09:15:41 ± 0.05
Latitude 42.7775 ± 0.0027
Longitude 12.7098 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97375981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
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 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.10612
Epicentral distance of station farthest from the epicenter (degree) 0.62143
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 97375981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-10 09:42:00

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 97338421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-08 09:19:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-11-08T09:15:58.15 0.3 undecidable manual S 49 53.2023 50 0.17 67
IV.MC2.EHZ. 2021-11-08T09:15:55.09 0.6 undecidable manual S 69 41.7249 50 0.18 46
IV.MML1.EHZ. 2021-11-08T09:15:55.80 0.3 undecidable manual S 30 42.9237 50 0.57 62
IV.FDMO.HHZ. 2021-11-08T09:15:54.83 0.6 undecidable manual S 47 42.0246 50 -0.17 46
IV.EL6.EHZ. 2021-11-08T09:15:53.22 0.1 undecidable manual P 27 68.9754 50 -0.09 89
IV.LNSS.HHZ. 2021-11-08T09:15:52.70 0.6 undecidable manual S 126 33.1446 50 0.06 47
IV.NRCA.HHZ. 2021-11-08T09:15:52.60 0.6 undecidable manual S 79 33.5442 50 -0.12 47
IV.CESI.HHZ. 2021-11-08T09:15:51.50 0.6 undecidable manual S 32 29.748 50 -0.22 46
IV.ASSB.HHZ. 2021-11-08T09:15:51.87 0.1 undecidable manual S 352 29.6481 50 0.17 93
IV.ARRO.EHZ. 2021-11-08T09:15:50.28 0.3 undecidable manual S 168 22.4553 50 0.51 65
IV.CSP1.EHZ. 2021-11-08T09:15:50.82 0.3 undecidable manual P 49 53.2023 50 -0.07 69
IV.MC2.EHZ. 2021-11-08T09:15:49.05 0.1 undecidable manual P 69 41.7249 50 -0.06 94
IV.CESX.HHZ. 2021-11-08T09:15:49.10 0.1 undecidable manual S 208 21.2676 116 -0.33 93
IV.MML1.EHZ. 2021-11-08T09:15:49.24 0.1 undecidable manual P 30 42.9237 50 -0.06 94
IV.FDMO.HHZ. 2021-11-08T09:15:49.18 0.1 undecidable manual P 47 42.0246 50 0.02 95
IV.GAVE.EHZ. 2021-11-08T09:15:48.39 0.3 undecidable manual S 122 17.7711 121 0.03 74
IV.ASSB.HHZ. 2021-11-08T09:15:47.14 0.1 undecidable manual P 352 29.6481 50 -0.12 95
IV.NRCA.HHZ. 2021-11-08T09:15:47.68 0.1 undecidable manual P 79 33.5442 50 -0.17 93
IV.LNSS.HHZ. 2021-11-08T09:15:47.78 0.1 undecidable manual P 126 33.1446 50 -0.02 96
IT.GNU.HGZ. 2021-11-08T09:15:46.79 0.6 undecidable manual S 284 11.7771 132 0.12 49
IV.CESX.HHZ. 2021-11-08T09:15:46.41 0.3 undecidable manual P 208 21.2676 116 0.46 67
IV.MOMA.HHZ. 2021-11-08T09:15:46.59 0.6 undecidable manual S 284 11.7771 132 -0.08 49
IV.CESI.HHZ. 2021-11-08T09:15:46.99 0.1 undecidable manual P 32 29.748 50 -0.29 91
IV.GAVE.EHZ. 2021-11-08T09:15:45.35 0.1 undecidable manual P 122 17.7711 121 0.02 99
IV.ARRO.EHZ. 2021-11-08T09:15:45.92 0.3 undecidable manual P 168 22.4553 50 -0.23 71
IV.MOMA.HHZ. 2021-11-08T09:15:44.44 0.1 positive manual P 284 11.7771 132 0.09 99
IT.GNU.HGZ. 2021-11-08T09:15:44.37 0.1 undecidable manual P 284 11.7771 132 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.8 0.0008455 0.22 AML other m 2021-11-08T09:15:47.02
IV.MOMA.HHN. ML:1.4 0.000301 0.32 AML other m 2021-11-08T09:15:47.40
IV.ASSB.HHN. ML:1.1 0.00005485 0.48 AML other m 2021-11-08T09:15:51.20
IV.ASSB.HHE. ML:1.1 0.0000669 1.52 AML other m 2021-11-08T09:15:51.12
IV.GAVE.EHE. ML:1.2 0.000143 1.08 AML other m 2021-11-08T09:15:52.00
IV.GAVE.EHN. ML:1.2 0.00011899999999999999 0.92 AML other m 2021-11-08T09:15:52.83
IV.CESI.HHN. ML:1.1 0.00006500000000000001 1.44 AML other m 2021-11-08T09:15:53.73
IV.NRCA.HHN. ML:1.3 0.00008285000000000001 0.14 AML other m 2021-11-08T09:15:53.05
IV.NRCA.HHE. ML:1.5 0.0001395 0.12 AML other m 2021-11-08T09:15:53.33
IV.CESI.HHE. ML:0.9 0.0000409 0.5 AML other m 2021-11-08T09:15:53.61
IV.FDMO.HHE. ML:1.0 0.00003175 1.16 AML other m 2021-11-08T09:15:56.88
IV.MML1.EHN. ML:1.0 0.000029049999999999998 0.74 AML other m 2021-11-08T09:15:56.38
IV.FDMO.HHN. ML:1.0 0.00003185 0.6 AML other m 2021-11-08T09:15:57.43
IV.MML1.EHE. ML:1.1 0.00003995 0.42 AML other m 2021-11-08T09:15:58.78
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