Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 07-03-2021 and time 17:54:20 (UTC) in region 5 km E Campello sul Clitunno (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km E Campello sul Clitunno (PG), on

  • 07-03-2021 17:54:20 (UTC)
  • 07-03-2021 18:54:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8320, 12.8400 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.

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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
Cerreto di Spoleto PG 7 1075 3517
Vallo di Nera PG 7 364 3881
Trevi PG 9 8469 12350
Sellano PG 10 1079 13429
Sant'Anatolia di Narco PG 11 564 13993
Scheggino PG 13 461 14454
Spoleto PG 14 38218 52672
Castel Ritaldi PG 14 3278 55950
Poggiodomo PG 15 117 56067
Montefalco PG 17 5679 61746
Preci PG 17 724 62470
Foligno PG 18 57155 119625
Cascia PG 19 3217 122842

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of Foligno (57155 inhabitants)
34 Km NE of Terni (111501 inhabitants)
48 Km SE of Perugia (166134 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
73 Km W of Teramo (54892 inhabitants)
76 Km NE of Viterbo (67173 inhabitants)
93 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km N of Tivoli (56533 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 1.1 2021-03-07
17:54:20		 42.8323 12.8398 10 2021-03-07
18:04:06		 Sala Sismica INGV-Roma 87877791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-07 17:54:20 ± 0.06
Latitude 42.8323 ± 0.0036
Longitude 12.8398 ± 0.0049
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 87877791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 366
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.14569
Epicentral distance of station farthest from the epicenter (degree) 0.53240
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 87877791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-07 18:04:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-03-07T17:54:40.10 0.3 undecidable manual S 21 59.0964 50 0.73 58
IV.ATCC.EHZ. 2021-03-07T17:54:35.19 0.3 undecidable manual S 338 42.3243 50 0.28 68
IV.CSP1.EHZ. 2021-03-07T17:54:34.70 0.3 undecidable manual S 46 41.3253 50 0.06 71
IV.ARRO.EHZ. 2021-03-07T17:54:31.04 0.3 undecidable manual S 192 28.749 50 -0.24 70
IV.EL6.EHZ. 2021-03-07T17:54:31.35 0.1 undecidable manual P 21 59.0964 50 -0.23 89
IV.FDMO.HHZ. 2021-03-07T17:54:31.58 0.3 undecidable manual S 42 30.2475 50 -0.11 72
IV.FOSV.EHZ. 2021-03-07T17:54:30.50 0.1 undecidable manual P 353 51.7038 50 0.05 94
IV.NRCA.HHZ. 2021-03-07T17:54:29.39 0.3 undecidable manual S 90 22.3554 114 -0.06 74
IV.MOMA.HHZ. 2021-03-07T17:54:29.37 0.3 undecidable manual S 262 22.1556 115 -0.03 74
IT.GNU.HGZ. 2021-03-07T17:54:29.20 0.1 undecidable manual S 262 22.1556 115 -0.2 96
IT.FOPC.HGE. 2021-03-07T17:54:28.20 0.1 undecidable manual S 324 18.87 118 -0.17 97
IV.CSP1.EHZ. 2021-03-07T17:54:28.72 0.3 undecidable manual P 46 41.3253 50 -0.13 70
IV.ATCC.EHZ. 2021-03-07T17:54:28.85 0.1 undecidable manual P 338 42.3243 50 -0.16 93
IV.CESI.HHZ. 2021-03-07T17:54:28.67 0.3 undecidable manual S 15 19.869 117 0 75
IV.GAVE.EHZ. 2021-03-07T17:54:27.78 0.3 undecidable manual S 164 16.1727 122 0.22 72
IV.CESX.HHN. 2021-03-07T17:54:27.38 0.3 undecidable manual P 220 32.2455 50 -0.08 72
IT.GNU.HGZ. 2021-03-07T17:54:26.54 0.1 undecidable manual P 262 22.1556 115 0.72 82
IV.ARRO.EHZ. 2021-03-07T17:54:26.78 0.6 positive manual P 192 28.749 50 -0.13 48
IV.FDMO.HHZ. 2021-03-07T17:54:26.91 0.6 positive manual P 42 30.2475 50 -0.24 47
IV.MOMA.HHZ. 2021-03-07T17:54:25.76 1.0 positive manual P 262 22.1556 115 -0.06 25
IV.NRCA.HHZ. 2021-03-07T17:54:25.75 0.1 undecidable manual P 90 22.3554 114 -0.1 98
IT.FOPC.HGE. 2021-03-07T17:54:25.08 0.1 undecidable manual P 324 18.87 118 -0.15 97
IV.CESI.HHZ. 2021-03-07T17:54:25.40 0.1 positive manual P 15 19.869 117 -0.01 100
IV.GAVE.EHZ. 2021-03-07T17:54:24.92 0.1 undecidable manual P 164 16.1727 122 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.4 0.00024564255 0.1408 AML other m 2021-03-07T17:54:28.16
IV.GAVE.EHN. ML:1.3 0.000164416635 0.128 AML other m 2021-03-07T17:54:28.24
IV.CESI.HHE. ML:1.2 0.00011176714499999999 0.1408 AML other m 2021-03-07T17:54:28.93
IV.CESI.HHN. ML:1.2 0.00010348845500000001 0.1152 AML other m 2021-03-07T17:54:28.82
IV.NRCA.HHN. ML:1.4 0.0001705 0.14 AML other m 2021-03-07T17:54:29.53
IV.MOMA.HHN. ML:1.1 0.00008741315 0.1792 AML other m 2021-03-07T17:54:30.43
IV.MOMA.HHE. ML:1.2 0.00010085 0.12 AML other m 2021-03-07T17:54:29.78
IV.NRCA.HHE. ML:1.2 0.00010894999999999999 0.08 AML other m 2021-03-07T17:54:29.86
IV.FDMO.HHN. ML:0.7 0.000024800000000000003 0.58 AML other m 2021-03-07T17:54:32.48
IV.FDMO.HHE. ML:0.5 0.000017270835 0.1152 AML other m 2021-03-07T17:54:31.95
IV.ATCC.EHN. ML:0.9 0.000023572499 0.128 AML other m 2021-03-07T17:54:35.81
IV.ATCC.EHE. ML:0.9 0.00002686036 0.2944 AML other m 2021-03-07T17:54:35.83
IV.GAVE.HNE. ML:1.5 0.00025365209999999997 0.1536 AML other m 2021-03-07T17:54:28.15
IV.CESI.HNE. ML:1.2 0.000108944225 0.1408 AML other m 2021-03-07T17:54:28.93
IV.CESI.HNN. ML:1.4 0.00020627145 0.2304 AML other m 2021-03-07T17:54:29.08
IV.MOMA.HNN. ML:1.2 0.00010782699499999999 0.192 AML other m 2021-03-07T17:54:30.43
IV.ARRO.EHE. ML:0.8 0.000028025380000000003 0.2304 AML other m 2021-03-07T17:54:31.35
IV.ARRO.EHN. ML:0.6 0.00002096924 0.2176 AML other m 2021-03-07T17:54:31.88
IV.CSP1.EHE. ML:1.3 0.00006376614 0.32 AML other m 2021-03-07T17:54:35.53
IV.CSP1.EHN. ML:1.2 0.000051775180000000004 0.3456 AML other m 2021-03-07T17:54:34.92
IV.EL6.EHE. ML:1.0 0.000021630835000000002 0.192 AML other m 2021-03-07T17:54:40.89
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