Earthquake with magnitude of ML 1.6 on date 12-11-2021 and time 10:34:35 (UTC) in region 6 km N Spoleto (PG)

A magnitude ML 1.6 earthquake occured in region: 6 km N Spoleto (PG), on

  • 12-11-2021 10:34:35 (UTC)
  • 12-11-2021 11:34:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.785, 12.729 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
Spoleto PG 6 38218 38218
Campello sul Clitunno PG 6 2442 40660
Castel Ritaldi PG 6 3278 43938
Sant'Anatolia di Narco PG 11 564 44502
Trevi PG 11 8469 52971
Vallo di Nera PG 11 364 53335
Scheggino PG 12 461 53796
Giano dell'Umbria PG 14 3846 57642
Montefalco PG 14 5679 63321
Cerreto di Spoleto PG 16 1075 64396
Massa Martana PG 17 3770 68166
Acquasparta TR 18 4778 72944
Poggiodomo PG 19 117 73061
Ferentillo TR 19 1913 74974
Foligno PG 19 57155 132129
Bevagna PG 19 5081 137210
Gualdo Cattaneo PG 20 6155 143365

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km S of Foligno (57155 inhabitants)
26 Km N of Terni (111501 inhabitants)
45 Km SE of Perugia (166134 inhabitants)
65 Km NE of Viterbo (67173 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
81 Km W of Teramo (54892 inhabitants)
87 Km N of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-11-12
10:34:35
42.7848 12.7287 10 2021-11-12
10:42:14
Sala Sismica INGV-Roma 97413841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-12 10:34:35 ± 0.05
Latitude 42.7848 ± 0.0045
Longitude 12.7287 ± 0.0061
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97413841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 532
Semi-minor axis of confidence ellipse (meter) 337
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.46405
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 97413841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-12 10:42:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PP3.EHZ. 2021-11-12T10:35:02.17 3.0 undecidable manual S -2.11 0
IV.PCRO.HNZ. 2021-11-12T10:34:57.52 3.0 negative manual P 3.24 0
IV.MTL1.HNZ. 2021-11-12T10:34:54.87 3.0 undecidable manual S 2.49 0
IV.ATFO.HHZ. 2021-11-12T10:34:54.03 3.0 undecidable manual S -1.73 0
IV.CSP1.EHZ. 2021-11-12T10:34:52.19 0.6 undecidable manual S 48 0.4641 50 0.07 46
IV.ATCC.EHZ. 2021-11-12T10:34:50.99 0.6 undecidable manual S 351 0.4056 50 0.61 41
IV.FDMO.HHZ. 2021-11-12T10:34:49.02 0.3 undecidable manual S 46 0.3633 50 -0.12 70
IV.MC2.EHZ. 2021-11-12T10:34:49.40 0.6 undecidable manual S 69 0.3597 50 0.36 44
IV.MML1.EHZ. 2021-11-12T10:34:49.78 0.6 undecidable manual S 28 0.3732 50 0.35 44
IV.MF5.EHZ. 2021-11-12T10:34:47.92 3.0 negative manual P 1.47 0
IV.ASSB.HHZ. 2021-11-12T10:34:46.10 0.6 undecidable manual S 349 0.2626 50 -0.05 48
IV.LNSS.HHZ. 2021-11-12T10:34:46.82 0.6 undecidable manual S 128 0.2923 50 -0.21 46
IV.CESI.HHZ. 2021-11-12T10:34:45.57 0.6 undecidable manual S 30 0.2545 50 -0.35 45
IV.CSP1.EHZ. 2021-11-12T10:34:45.17 0.3 undecidable manual P 48 0.4641 50 -0.02 70
IV.MGAB.HHZ. 2021-11-12T10:34:45.46 3.0 negative manual P -0.78 0
IV.ATCC.EHZ. 2021-11-12T10:34:44.32 0.3 undecidable manual P 351 0.4056 50 0.14 69
IV.MMO1.EHZ. 2021-11-12T10:34:44.92 3.0 positive manual P 0.57 0
IV.CESX.HHZ. 2021-11-12T10:34:44.38 0.3 undecidable manual S 211 0.205 114 0.01 74
IV.ARRO.EHZ. 2021-11-12T10:34:44.59 0.6 undecidable manual S 172 0.2077 114 0.13 48
IV.FDMO.HHZ. 2021-11-12T10:34:43.42 0.1 undecidable manual P 46 0.3633 50 -0.04 95
IV.MC2.EHZ. 2021-11-12T10:34:43.43 0.1 undecidable manual P 69 0.3597 50 0.02 95
IV.MML1.EHZ. 2021-11-12T10:34:43.49 0.3 undecidable manual P 28 0.3732 50 -0.15 69
IV.GAVE.EHZ. 2021-11-12T10:34:42.64 0.6 undecidable manual S 127 0.1529 121 0.05 49
IV.LNSS.HHZ. 2021-11-12T10:34:42.03 0.1 negative manual P 128 0.2923 50 -0.22 93
IV.ARRO.EHZ. 2021-11-12T10:34:41.24 0.3 undecidable manual P 172 0.2077 114 0.47 67
IV.MOMA.HHZ. 2021-11-12T10:34:41.29 0.3 undecidable manual S 279 0.1178 128 -0.19 72
IV.CESI.HHZ. 2021-11-12T10:34:41.41 0.1 undecidable manual P 30 0.2545 50 -0.2 94
IV.ASSB.HHZ. 2021-11-12T10:34:41.78 0.3 undecidable manual P 349 0.2626 50 0.04 72
IV.CESX.HHZ. 2021-11-12T10:34:40.63 0.3 undecidable manual P 211 0.205 114 -0.08 73
IV.MOMA.HHZ. 2021-11-12T10:34:39.04 0.1 undecidable manual P 279 0.1178 128 -0.01 100
IV.GAVE.EHZ. 2021-11-12T10:34:39.65 0.1 undecidable manual P 127 0.1529 121 -0.04 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.9 0.000942 0.24 AML other m 2021-11-12T10:34:41.64
IV.MOMA.HNE. ML:1.9 0.000878 0.24 AML other m 2021-11-12T10:34:41.76
IV.MOMA.HHN. ML:1.8 0.0006825 1.46 AML other m 2021-11-12T10:34:42.15
IV.MOMA.HNN. ML:1.8 0.0006555 1.46 AML other m 2021-11-12T10:34:42.15
IV.GAVE.EHE. ML:1.9 0.000717 1.52 AML other m 2021-11-12T10:34:43.08
IV.GAVE.EHN. ML:1.7 0.00044855005 0.6144 AML other m 2021-11-12T10:34:43.64
IV.ARRO.EHE. ML:1.3 0.00012885 0.9 AML other m 2021-11-12T10:34:45.79
IV.CESI.HHN. ML:1.5 0.0001715 0.66 AML other m 2021-11-12T10:34:46.08
IV.CESX.HHE. ML:1.5 0.000206 1.54 AML other m 2021-11-12T10:34:46.08
IV.CESX.HHN. ML:1.6 0.0002585 1.62 AML other m 2021-11-12T10:34:47.84
IV.LNSS.HHE. ML:1.6 0.000177 0.18 AML other m 2021-11-12T10:34:47.75
IV.CESI.HHE. ML:1.4 0.0001405 1.28 AML other m 2021-11-12T10:34:47.14
IV.ASSB.HHE. ML:1.4 0.0001375 1.42 AML other m 2021-11-12T10:34:47.13
IV.ASSB.HHN. ML:1.4 0.0001285 1.52 AML other m 2021-11-12T10:34:48.88
IV.ARRO.EHN. ML:1.2 0.000112 0.16 AML other m 2021-11-12T10:34:48.81
IV.LNSS.HHN. ML:1.5 0.00013731603 0.3008 AML other m 2021-11-12T10:34:48.15
IV.FDMO.HHN. ML:1.3 7.01E-5 0.22 AML other m 2021-11-12T10:34:49.78
IV.FDMO.HHE. ML:1.3 7.175E-5 0.42 AML other m 2021-11-12T10:34:50.19
IV.MML1.EHN. ML:1.3 6.23E-5 0.72 AML other m 2021-11-12T10:34:51.24
IV.MML1.EHE. ML:1.3 5.995E-5 0.82 AML other m 2021-11-12T10:34:51.31
IV.ATCC.EHN. ML:1.5 8.94E-5 0.16 AML other m 2021-11-12T10:34:51.91
IV.MMO1.EHE. ML:1.6 0.00011025 0.68 AML other m 2021-11-12T10:34:52.54
IV.ATCC.EHE. ML:1.5 9.05E-5 1.26 AML other m 2021-11-12T10:34:52.81
IV.MMO1.EHN. ML:1.5 8.725E-5 0.94 AML other m 2021-11-12T10:34:53.90
IV.MGAB.HHE. ML:1.5 7.875E-5 1.02 AML other m 2021-11-12T10:34:54.76
IV.MGAB.HHN. ML:1.6 9.21E-5 0.28 AML other m 2021-11-12T10:34:56.40
IV.GAVE.HNE. ML:1.9 0.0007484887 0.2752 AML other m 2021-11-12T10:34:43.08
IV.CSP1.EHE. ML:1.7 0.00013535149 0.96 AML other m 2021-11-12T10:34:53.86
IV.CSP1.EHN. ML:2 0.00022686685 0.7616 AML other m 2021-11-12T10:34:53.04
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