Earthquake with magnitude of ML 1.6 on date 21-09-2021 and time 17:14:38 (Italy) in region 5 km S Campello sul Clitunno (PG)

A magnitude ML 1.6 earthquake occured in region: 5 km S Campello sul Clitunno (PG), on

  • 21-09-2021 15:14:38 (UTC)
  • 21-09-2021 17:14:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.778, 12.765 at 8 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
Campello sul Clitunno PG 5 2442 2442
Spoleto PG 5 38218 40660
Sant'Anatolia di Narco PG 8 564 41224
Vallo di Nera PG 8 364 41588
Scheggino PG 9 461 42049
Castel Ritaldi PG 9 3278 45327
Trevi PG 11 8469 53796
Cerreto di Spoleto PG 13 1075 54871
Poggiodomo PG 16 117 54988
Montefalco PG 16 5679 60667
Giano dell'Umbria PG 17 3846 64513
Ferentillo TR 18 1913 66426
Sellano PG 18 1079 67505
Massa Martana PG 20 3770 71275
Montefranco TR 20 1276 72551

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of Foligno (57155 inhabitants)
26 Km NE of Terni (111501 inhabitants)
48 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
78 Km W of Teramo (54892 inhabitants)
86 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 the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-09-21
15:14:38
42.778 12.7652 8 2021-09-21
16:20:11
Sala Sismica INGV-Roma 95707681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-21 15:14:38 ± 0.07
Latitude 42.7780 ± 0.0027
Longitude 12.7652 ± 0.0049
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95707681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 322
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 335
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.1277
Epicentral distance of station farthest from the epicenter (degree) 0.60344
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 95707681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-21 16:20:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHE. 2021-09-21T15:15:00.36 1.0 undecidable manual S 24 0.6034 50 0.55 21
IV.MF5.EHZ. 2021-09-21T15:14:59.11 0.1 undecidable manual S 67 0.5504 50 0.88 73
IV.MURB.HHZ. 2021-09-21T15:14:58.19 0.6 undecidable manual S 340 0.5153 50 0.98 35
IV.MDAR.HNZ. 2021-09-21T15:14:56.66 0.3 undecidable manual S 34 0.4982 50 -0.03 71
IV.CSP1.EHZ. 2021-09-21T15:14:55.25 0.1 undecidable manual S 46 0.4497 50 0 96
IV.SMA1.EHZ. 2021-09-21T15:14:55.39 0.3 undecidable manual S 109 0.4443 50 0.31 68
IV.MTRA.EHN. 2021-09-21T15:14:55.72 0.1 undecidable manual S 92 0.4641 50 0.05 95
IV.T1299.EHZ. 2021-09-21T15:14:54.08 0.1 undecidable manual S 111 0.4056 50 0.12 95
IV.MMO1.EHZ. 2021-09-21T15:14:54.45 0.3 undecidable manual S 73 0.429 50 -0.2 70
IV.MML1.EHZ. 2021-09-21T15:14:52.65 0.3 undecidable manual S 24 0.3678 50 -0.18 71
IV.MC2.EHZ. 2021-09-21T15:14:52.21 0.3 undecidable manual S 67 0.3381 50 0.26 70
IV.EL6.EHE. 2021-09-21T15:14:51.49 0.1 undecidable manual P 24 0.6034 50 0.55 82
IV.FDMO.HHZ. 2021-09-21T15:14:51.89 0.3 undecidable manual S 42 0.3498 50 -0.41 68
IV.FEMA.HNZ. 2021-09-21T15:14:49.93 0.1 undecidable manual S 48 0.2779 105 0.04 99
IV.LNSS.HHZ. 2021-09-21T15:14:49.19 0.3 undecidable manual S 131 0.2671 105 -0.3 70
IV.MF5.EHZ. 2021-09-21T15:14:49.17 0.1 undecidable manual P 67 0.5504 50 -0.86 73
IV.MURB.HHZ. 2021-09-21T15:14:49.68 0.3 undecidable manual P 340 0.5153 50 0.24 68
IV.ASSB.HHZ. 2021-09-21T15:14:49.85 0.3 undecidable manual S 344 0.2761 105 0.05 74
IT.MTCL.HGZ. 2021-09-21T15:14:49.67 0.1 undecidable manual S 38 0.2752 105 -0.13 97
IV.NRCA.HHZ. 2021-09-21T15:14:49.29 0.3 undecidable manual S 78 0.2617 106 0 75
IV.SNTG.HHZ. 2021-09-21T15:14:48.87 0.1 undecidable manual P 15 0.4937 50 -0.19 92
IV.CESI.HHZ. 2021-09-21T15:14:48.88 0.3 undecidable manual S 24 0.2491 106 0.08 74
IV.CSP1.EHZ. 2021-09-21T15:14:48.18 0.1 undecidable manual P 46 0.4497 50 -0.12 94
IV.SMA1.EHZ. 2021-09-21T15:14:48.17 0.1 undecidable manual P 109 0.4443 50 -0.04 95
IV.MTRA.EHN. 2021-09-21T15:14:48.30 0.1 undecidable manual P 92 0.4641 50 -0.25 91
IV.MMO1.EHZ. 2021-09-21T15:14:47.76 0.1 undecidable manual P 73 0.429 50 -0.2 93
IV.T1299.EHZ. 2021-09-21T15:14:47.38 0.1 undecidable manual P 111 0.4056 50 -0.18 93
IV.FDMO.HHZ. 2021-09-21T15:14:46.39 0.1 undecidable manual P 42 0.3498 50 -0.21 94
IV.CESX.HHZ. 2021-09-21T15:14:46.98 1.0 undecidable manual S 218 0.214 109 -0.56 22
IV.MML1.EHZ. 2021-09-21T15:14:46.64 0.3 undecidable manual P 24 0.3678 50 -0.27 69
IV.MC2.EHZ. 2021-09-21T15:14:46.32 0.1 undecidable manual P 67 0.3381 50 -0.08 97
IT.MTCL.HGZ. 2021-09-21T15:14:45.14 0.1 undecidable manual P 38 0.2752 105 -0.02 99
IV.FEMA.HNZ. 2021-09-21T15:14:45.34 0.1 undecidable manual P 48 0.2779 105 0.13 97
IV.MOMA.HHZ. 2021-09-21T15:14:45.06 0.3 undecidable manual S 280 0.1457 117 -0.03 76
IV.NRCA.HHZ. 2021-09-21T15:14:44.74 0.3 undecidable manual P 78 0.2617 106 -0.13 73
IV.LNSS.HHZ. 2021-09-21T15:14:44.89 0.3 undecidable manual P 131 0.2671 105 -0.09 73
IV.GAVE.EHZ. 2021-09-21T15:14:44.83 0.1 undecidable manual S 132 0.1277 120 0.34 95
IV.ASSB.HHZ. 2021-09-21T15:14:44.98 0.1 undecidable manual P 344 0.2761 105 -0.18 96
IV.CESI.HHZ. 2021-09-21T15:14:44.69 0.3 undecidable manual P 24 0.2491 106 0.11 73
IV.MDAR.HNZ. 2021-09-21T15:14:43.61 3.0 undecidable manual P 34 0.4982 50 -5.53 0
IV.CESX.HHZ. 2021-09-21T15:14:43.82 0.1 undecidable manual P 218 0.214 109 -0.03 100
IV.ARRO.EHZ. 2021-09-21T15:14:43.71 0.6 undecidable manual P 180 0.1988 110 0.18 49
IV.MOMA.HHZ. 2021-09-21T15:14:42.61 0.1 positive manual P 280 0.1457 117 0.17 99
IV.GAVE.EHZ. 2021-09-21T15:14:42.42 0.1 undecidable manual P 132 0.1277 120 0.33 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:2 0.001145 0.18 AML other m 2021-09-21T15:14:45.24
IV.GAVE.EHN. ML:1.9 0.00081073295 0.128 AML other m 2021-09-21T15:14:46.23
IV.MOMA.HHN. ML:1.8 0.000666 0.24 AML other m 2021-09-21T15:14:45.60
IV.MOMA.HNN. ML:1.8 0.0006735 0.24 AML other m 2021-09-21T15:14:45.61
IV.MOMA.HHE. ML:2.1 0.001222515 0.192 AML other m 2021-09-21T15:14:45.82
IV.MOMA.HNE. ML:2.1 0.001127 0.2 AML other m 2021-09-21T15:14:45.83
IV.GAVE.HNE. ML:2 0.0011750325 0.1792 AML other m 2021-09-21T15:14:45.24
IV.ARRO.EHE. ML:1.4 0.0001775 0.26 AML other m 2021-09-21T15:14:47.78
IV.GAVE.HNN. ML:1.4 0.00025352615 0.1024 AML other m 2021-09-21T15:14:45.43
IV.ARRO.EHN. ML:1.2 0.00010541508 0.2304 AML other m 2021-09-21T15:14:48.22
IV.CESX.HHN. ML:1.4 0.0001645 0.22 AML other m 2021-09-21T15:14:48.63
IV.CESX.HHE. ML:1.3 0.000125 1.62 AML other m 2021-09-21T15:14:48.99
IV.CESI.HHN. ML:1.9 0.000417 0.24 AML other m 2021-09-21T15:14:49.22
IV.CESI.HHE. ML:1.5 0.0001585782 0.128 AML other m 2021-09-21T15:14:49.07
IV.LNSS.HHE. ML:1.8 0.000305 0.12 AML other m 2021-09-21T15:14:49.40
IV.NRCA.HHE. ML:1.6 0.00020808415 0.1408 AML other m 2021-09-21T15:14:50.68
IV.NRCA.HHN. ML:1.6 0.00018187205 0.0512 AML other m 2021-09-21T15:14:49.95
IV.LNSS.HHN. ML:1.8 0.0003465 1.76 AML other m 2021-09-21T15:14:50.09
IV.ASSB.HHE. ML:1.5 0.0001405 0.22 AML other m 2021-09-21T15:14:50.74
IV.ASSB.HHN. ML:1.4 0.0001131278 0.1792 AML other m 2021-09-21T15:14:50.25
IV.FDMO.HHE. ML:1.5 0.00011313325 0.128 AML other m 2021-09-21T15:14:52.94
IV.FDMO.HHN. ML:1.5 0.00010315 1.88 AML other m 2021-09-21T15:14:53.05
IV.MML1.EHE. ML:1.4 8.017531E-5 0.2176 AML other m 2021-09-21T15:14:53.11
IV.MML1.EHN. ML:1.4 8.612217E-5 0.1408 AML other m 2021-09-21T15:14:53.15
IV.CSP1.EHN. ML:1.9 0.0002 1.52 AML other m 2021-09-21T15:14:55.08
IV.CSP1.EHE. ML:2.1 0.0003395 1.76 AML other m 2021-09-21T15:14:56.09
IV.SMA1.EHN. ML:1.5 8.35E-5 0.4 AML other m 2021-09-21T15:14:57.29
IV.SMA1.EHE. ML:1.6 0.0001034 0.26 AML other m 2021-09-21T15:14:58.18
IV.MURB.HHE. ML:1.7 0.00011035 0.18 AML other m 2021-09-21T15:14:59.42
IV.MURB.HHN. ML:1.8 0.000127785 0.3456 AML other m 2021-09-21T15:14:59.75
IV.CESI.HNE. ML:1.4 0.00012700219 0.064 AML other m 2021-09-21T15:14:49.16
IV.CESI.HNN. ML:1.8 0.00038413295 0.1664 AML other m 2021-09-21T15:14:49.23
IV.NRCA.HNE. ML:1.6 0.00018910355 0.1408 AML other m 2021-09-21T15:14:49.65
IV.NRCA.HNN. ML:1.5 0.0001656115 0.128 AML other m 2021-09-21T15:14:50.77
IV.LNSS.HNE. ML:1.7 0.00026907255 0.1792 AML other m 2021-09-21T15:14:49.47
IV.LNSS.HNN. ML:1.8 0.0002782626 0.2432 AML other m 2021-09-21T15:14:49.96
IV.MURB.HNE. ML:1.7 0.00010112487 0.2048 AML other m 2021-09-21T15:14:59.35
IV.MURB.HNN. ML:1.7 0.00011962453 0.2176 AML other m 2021-09-21T15:15:00.10
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