Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 20-02-2022 and time 08:06:33 (UTC) in region 3 km NE Cerreto di Spoleto (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km NE Cerreto di Spoleto (PG), on

  • 20-02-2022 08:06:33 (UTC)
  • 20-02-2022 09:06:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8410, 12.9400 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.

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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
Cerreto di Spoleto PG 3 1075 1075
Sellano PG 6 1079 2154
Preci PG 9 724 2878
Vallo di Nera PG 10 364 3242
Campello sul Clitunno PG 13 2442 5684
Norcia PG 14 4957 10641
Poggiodomo PG 14 117 10758
Sant'Anatolia di Narco PG 15 564 11322
Cascia PG 15 3217 14539
Visso MC 16 1107 15646
Trevi PG 16 8469 24115
Scheggino PG 17 461 24576
Monte Cavallo MC 18 145 24721
Castelsantangelo sul Nera MC 18 281 25002
Ussita MC 20 444 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
54 Km SE of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
98 Km SW of Ancona (100861 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 1.1 2022-02-20
08:06:33		 42.841 12.9402 11 2022-07-08
12:33:31		 Bollettino Sismico Italiano INGV 101211921
Reviewed
Rev100 		ML 1.1 2022-02-20
08:06:33		 42.8397 12.9427 11 2022-02-20
08:13:46		 Sala Sismica INGV-Roma 101159351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-20 08:06:33 ± 0.06
Latitude 42.8410 ± 0.0027
Longitude 12.9402 ± 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 101211921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 279
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.12770
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 101211921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-06-13 09:56:14

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 101159351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-20 08:13:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-02-20T08:06:45.41 0.3 undecidable manual S 38 35.1426 50 -0.05 73
IV.MML1.EHZ. 2022-02-20T08:06:44.25 0.3 undecidable manual S 5 30.3474 50 0.08 74
IV.ASSB.HHZ. 2022-02-20T08:06:44.51 0.6 undecidable manual S 314 31.9458 50 -0.1 49
7F.SIB1.EHE. 2022-02-20T08:06:44.09 0.6 undecidable manual S 77 27.4503 50 0.68 42
IV.LNSS.HHZ. 2022-02-20T08:06:43.20 0.6 undecidable manual S 163 27.6501 50 -0.26 48
IV.MC2.EHZ. 2022-02-20T08:06:42.00 0.3 undecidable manual S 69 21.6672 116 0.14 74
7F.SIB3.EHN. 2022-02-20T08:06:42.97 0.3 undecidable manual S 82 27.0507 50 -0.34 70
IV.FDMO.HHZ. 2022-02-20T08:06:42.39 0.3 undecidable manual S 29 24.753 50 -0.3 71
IV.CSP1.EHZ. 2022-02-20T08:06:40.40 0.3 undecidable manual P 38 35.1426 50 0 74
IV.GAVE.EHZ. 2022-02-20T08:06:40.33 0.6 undecidable manual S 193 16.872 122 -0.08 50
IV.ASSB.HHZ. 2022-02-20T08:06:40.00 0.3 undecidable manual P 314 31.9458 50 0.09 73
IV.CESI.HHE. 2022-02-20T08:06:40.58 0.3 undecidable manual S 351 18.3705 120 -0.28 72
7F.SIB3.EHN. 2022-02-20T08:06:39.46 0.3 undecidable manual P 82 27.0507 50 0.3 71
IV.LNSS.HHZ. 2022-02-20T08:06:39.13 0.1 undecidable manual P 163 27.6501 50 -0.12 98
7F.SIB1.EHE. 2022-02-20T08:06:39.33 0.3 undecidable manual P 77 27.4503 50 0.11 74
IV.NRCA.HHZ. 2022-02-20T08:06:39.29 0.3 undecidable manual S 93 14.1747 127 -0.34 72
IV.MML1.EHZ. 2022-02-20T08:06:39.80 0.1 undecidable manual P 5 30.3474 50 0.14 97
IV.FDMO.HHZ. 2022-02-20T08:06:38.71 0.1 undecidable manual P 29 24.753 50 -0.09 99
IV.MC2.EHZ. 2022-02-20T08:06:38.41 0.6 undecidable manual P 69 21.6672 116 0.08 50
IV.GAVE.EHZ. 2022-02-20T08:06:37.60 0.1 undecidable manual P 193 16.872 122 0.11 100
IV.CESI.HHE. 2022-02-20T08:06:37.88 0.1 undecidable manual P 351 18.3705 120 0.14 99
IV.NRCA.HHZ. 2022-02-20T08:06:37.16 0.1 undecidable manual P 93 14.1747 127 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:1.1 0.00011693824 1.4816 AML other m 2022-02-20T08:06:40.99
IV.GAVE.EHN. ML:1.2 0.0001225 0.14 AML other m 2022-02-20T08:06:40.88
IV.GAVE.EHE. ML:1.2 0.00011979045 0.1408 AML other m 2022-02-20T08:06:41.21
IV.NRCA.HHE. ML:1.0 0.0001067 0.14 AML other m 2022-02-20T08:06:41.60
IV.NRCA.HNE. ML:1.1 0.00013182159999999997 0.7904 AML other m 2022-02-20T08:06:41.61
IV.NRCA.HHN. ML:0.8 0.00007078939 0.1344 AML other m 2022-02-20T08:06:41.74
IV.NRCA.HNN. ML:1.2 0.00013862920000000002 0.6176 AML other m 2022-02-20T08:06:41.51
IV.FDMO.HHE. ML:0.9 0.000051108875 0.16 AML other m 2022-02-20T08:06:42.58
IV.FDMO.HHN. ML:0.8 0.000038992230000000005 0.1408 AML other m 2022-02-20T08:06:42.60
IV.LNSS.HHN. ML:1.2 0.00007395000000000001 0.12 AML other m 2022-02-20T08:06:43.34
IV.LNSS.HHE. ML:1.4 0.00012154999999999999 0.12 AML other m 2022-02-20T08:06:43.33
IV.LNSS.HNE. ML:1.3 0.00009934777 0.1216 AML other m 2022-02-20T08:06:43.33
IV.MC2.EHN. ML:1.0 0.00007629206999999999 0.1984 AML other m 2022-02-20T08:06:43.70
IV.LNSS.HNN. ML:1.4 0.000143642885 1.0112 AML other m 2022-02-20T08:06:43.40
IV.MML1.HNE. ML:1.4 0.0001083705 0.8768 AML other m 2022-02-20T08:06:44.00
IV.MML1.EHE. ML:0.8 0.000029850244999999997 0.2368 AML other m 2022-02-20T08:06:44.44
IV.MML1.EHN. ML:0.8 0.000031625210000000004 0.1984 AML other m 2022-02-20T08:06:44.54
IV.MC2.EHE. ML:1.0 0.00007390782400000001 1.6 AML other m 2022-02-20T08:06:45.19
IV.ASSB.HHN. ML:0.6 0.000017699757999999998 0.1152 AML other m 2022-02-20T08:06:45.46
IV.ASSB.HHE. ML:0.8 0.000032452655 0.1024 AML other m 2022-02-20T08:06:46.54
IV.CSP1.EHE. ML:1.3 0.00007385474 0.4832 AML other m 2022-02-20T08:06:46.97
IV.CSP1.EHN. ML:1.3 0.00007556494499999999 0.9984 AML other m 2022-02-20T08:06:47.54
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