Earthquake with magnitude of ML 1.3 on date 20-10-2021 and time 06:41:46 (Italy) in region 5 km E Campello sul Clitunno (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km E Campello sul Clitunno (PG), on

  • 20-10-2021 04:41:46 (UTC)
  • 20-10-2021 06:41:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.819, 12.845 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
Campello sul Clitunno PG 6 2442 2442
Vallo di Nera PG 6 364 2806
Cerreto di Spoleto PG 6 1075 3881
Sant'Anatolia di Narco PG 9 564 4445
Trevi PG 10 8469 12914
Sellano PG 10 1079 13993
Scheggino PG 12 461 14454
Spoleto PG 13 38218 52672
Poggiodomo PG 14 117 52789
Castel Ritaldi PG 14 3278 56067
Preci PG 17 724 56791
Cascia PG 18 3217 60008
Montefalco PG 18 5679 65687
Foligno PG 19 57155 122842

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SE of Foligno (57155 inhabitants)
33 Km NE of Terni (111501 inhabitants)
49 Km SE of Perugia (166134 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
72 Km W of Teramo (54892 inhabitants)
75 Km NE of Viterbo (67173 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
95 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 1.3 2021-10-20
04:41:46
42.8187 12.8452 10 2021-10-20
05:15:10
Sala Sismica INGV-Roma 96786311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-20 04:41:46 ± 0.05
Latitude 42.8187 ± 0.0027
Longitude 12.8452 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96786311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 318
Semi-minor axis of confidence ellipse (meter) 195
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 44
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
Epicentral distance of station farthest from the epicenter (degree) 0.54319
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 96786311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-20 05:15:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RESU.HHZ. 2021-10-20T04:42:59.22 3.0 undecidable manual Pg 19.299999 0
IV.ESCV.HHZ. 2021-10-20T04:42:55.59 3.0 positive manual Pg 13.92 0
IX.SCL3.EHZ.02 2021-10-20T04:42:54.83 3.0 undecidable manual Sn -8.21 0
IV.SELL.HHZ. 2021-10-20T04:42:43.97 3.0 undecidable manual Pn 6.59 0
IV.SPS2.HHZ. 2021-10-20T04:42:38.04 3.0 negative manual Pn 5.89 0
IV.CAR1.HHZ. 2021-10-20T04:42:33.65 3.0 positive manual Pn 1.96 0
IV.TST02.HHZ. 2021-10-20T04:42:28.92 3.0 undecidable manual Sn 2.28 0
GU.GBOS.HHZ. 2021-10-20T04:42:17.78 3.0 undecidable manual Sn 5.61 0
IV.EL6.EHZ. 2021-10-20T04:42:06.12 0.1 undecidable manual S 20 0.5432 50 0.47 84
IX.SCL3.EHZ.02 2021-10-20T04:42:06.47 3.0 undecidable manual Pn -5.5 0
IV.CSP1.EHZ. 2021-10-20T04:42:00.87 0.1 undecidable manual S 44 0.3786 50 0.1 95
IV.MML1.EHZ. 2021-10-20T04:41:58.70 0.1 undecidable manual S 17 0.3085 50 0.01 98
IV.FDMO.HHZ. 2021-10-20T04:41:57.62 0.3 undecidable manual S 39 0.2806 50 -0.23 70
IV.MURB.HHN. 2021-10-20T04:41:57.38 0.1 undecidable manual P 332 0.5018 50 0.39 87
IV.ASSB.HHZ. 2021-10-20T04:41:57.48 0.3 undecidable manual S 329 0.2617 50 0.18 71
IV.EL6.EHZ. 2021-10-20T04:41:57.64 0.1 undecidable manual P 20 0.5432 50 -0.06 92
IV.LNSS.HHZ. 2021-10-20T04:41:57.02 0.3 undecidable manual S 146 0.259 50 -0.19 71
IV.MC2.EHZ. 2021-10-20T04:41:57.74 0.1 undecidable manual S 70 0.268 50 0.25 94
IV.NRCA.HHZ. 2021-10-20T04:41:55.22 0.1 undecidable manual S 86 0.1979 115 0 100
IT.MTCL.HGE. 2021-10-20T04:41:55.35 0.1 undecidable manual S 33 0.2086 113 -0.24 95
IV.SNTG.HHE. 2021-10-20T04:41:55.77 0.3 undecidable manual P 9 0.4416 50 -0.19 69
IV.MOMA.HHZ. 2021-10-20T04:41:55.34 0.3 undecidable manual S 266 0.2023 114 -0.04 74
IV.CESI.HHZ. 2021-10-20T04:41:54.95 0.1 undecidable manual S 13 0.1907 115 -0.04 99
IV.CSP1.EHZ. 2021-10-20T04:41:54.88 0.1 undecidable manual P 44 0.3786 50 0 96
IV.MC2.EHZ. 2021-10-20T04:41:53.09 0.1 undecidable manual P 70 0.268 50 0.1 97
IV.FDMO.HHZ. 2021-10-20T04:41:53.05 0.1 undecidable manual P 39 0.2806 50 -0.15 95
IV.MML1.EHZ. 2021-10-20T04:41:53.51 0.1 undecidable manual P 17 0.3085 50 -0.17 94
IV.ZEN8.EHZ. 2021-10-20T04:41:53.33 3.0 undecidable manual Sn -5.56 0
IV.MAGA.HHZ. 2021-10-20T04:41:53.74 3.0 undecidable manual Sn -8.75 0
IV.GAVE.EHZ. 2021-10-20T04:41:53.17 0.1 undecidable manual S 164 0.1313 124 0.18 98
IV.LNSS.HHZ. 2021-10-20T04:41:52.65 0.1 undecidable manual P 146 0.259 50 -0.18 95
IV.ARRO.EHZ. 2021-10-20T04:41:52.40 0.1 undecidable manual P 194 0.2464 50 -0.22 95
IV.ASSB.HHZ. 2021-10-20T04:41:52.55 0.1 undecidable manual P 329 0.2617 50 -0.33 92
IV.MOMA.HHZ. 2021-10-20T04:41:51.85 0.1 undecidable manual P 266 0.2023 114 0.08 98
IV.CESI.HHZ. 2021-10-20T04:41:51.61 0.1 undecidable manual P 13 0.1907 115 0.06 99
IV.NRCA.HHZ. 2021-10-20T04:41:51.68 0.1 undecidable manual P 86 0.1979 115 0 100
IT.MTCL.HGE. 2021-10-20T04:41:51.83 0.1 undecidable manual P 33 0.2086 113 -0.07 98
IV.GAVE.EHZ. 2021-10-20T04:41:50.66 0.1 undecidable manual P 164 0.1313 124 0.27 96
IV.BAG8.EHZ. 2021-10-20T04:41:45.66 3.0 undecidable manual Pg 6.75 0
IV.CAFI.HHZ. 2021-10-20T04:41:29.47 3.0 undecidable manual Sn -2.55 0
IV.CAFI.HHZ. 2021-10-20T04:41:19.71 3.0 undecidable manual P -1.12 0
GU.CARD.HHZ. 2021-10-20T04:41:17.10 3.0 negative manual P -0.33 0
IV.IMOL.HNZ. 2021-10-20T04:41:17.66 3.0 undecidable manual P -2.56 0
IV.FIR.HHZ. 2021-10-20T04:41:11.51 3.0 undecidable manual P -0.71 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIR.HNN. ML:2.9 0.0003351459 0.0576 AML other m 2021-10-20T04:41:22.86
IV.GAVE.EHE. ML:1.8 0.0005704059 0.1216 AML other m 2021-10-20T04:41:53.62
IV.GAVE.EHN. ML:1.8 0.000579 0.22 AML other m 2021-10-20T04:41:53.92
IV.CESI.HHN. ML:1.8 0.0004305 0.24 AML other m 2021-10-20T04:41:55.25
IV.NRCA.HHE. ML:1.3 0.0001355 0.16 AML other m 2021-10-20T04:41:55.33
IV.CESI.HHE. ML:1.4 0.000155689 0.16 AML other m 2021-10-20T04:41:55.36
IV.MOMA.HHE. ML:0.9 4.904912E-5 0.1184 AML other m 2021-10-20T04:41:55.87
IV.NRCA.HHN. ML:1 7.58578E-5 0.08 AML other m 2021-10-20T04:41:57.59
IV.MOMA.HHN. ML:0.9 4.99E-5 1.12 AML other m 2021-10-20T04:41:56.07
IV.LNSS.HHN. ML:1.3 0.00010273253 0.1408 AML other m 2021-10-20T04:41:57.76
IV.ASSB.HHE. ML:1.2 7.795E-5 0.16 AML other m 2021-10-20T04:41:57.89
IV.ARRO.EHN. ML:0.8 3.6465545E-5 0.1824 AML other m 2021-10-20T04:41:58.53
IV.LNSS.HHE. ML:1.2 8.703112E-5 0.0992 AML other m 2021-10-20T04:41:57.46
IV.ASSB.HHN. ML:1.2 7.139913E-5 0.08 AML other m 2021-10-20T04:41:58.71
IV.ARRO.EHE. ML:0.9 4.645109E-5 0.2208 AML other m 2021-10-20T04:41:58.36
IV.FDMO.HHE. ML:1 4.464364E-5 0.16 AML other m 2021-10-20T04:41:58.74
IV.FDMO.HHN. ML:1.1 5.795E-5 0.12 AML other m 2021-10-20T04:41:58.77
IV.MML1.EHN. ML:1.2 6.08E-5 1.86 AML other m 2021-10-20T04:41:59.93
IV.MML1.EHE. ML:1.2 6.145E-5 1.7 AML other m 2021-10-20T04:41:59.11
IV.CSP1.EHN. ML:1.6 0.000117457845 0.2208 AML other m 2021-10-20T04:42:01.68
IV.CSP1.EHE. ML:1.7 0.0001535 0.24 AML other m 2021-10-20T04:42:01.79
IV.GAVE.HNE. ML:1.7 0.0005452527 0.112 AML other m 2021-10-20T04:41:53.62
IV.GAVE.HNN. ML:1.4 0.0002184046 0.16 AML other m 2021-10-20T04:41:53.99
IV.CESI.HNE. ML:1.3 0.000150309935 0.1696 AML other m 2021-10-20T04:41:55.36
IV.CESI.HNN. ML:1.8 0.0004467997 0.24 AML other m 2021-10-20T04:41:55.37
IV.NRCA.HNE. ML:1.2 0.00012013262 0.112 AML other m 2021-10-20T04:41:55.41
IV.EL6.EHE. ML:1.2 3.205819E-5 0.16 AML other m 2021-10-20T04:42:07.12
IV.EL6.EHN. ML:1.2 3.101144E-5 0.2208 AML other m 2021-10-20T04:42:07.00
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