Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 20-05-2022 and time 04:16:09 (Italy) in region 5 km SE Valtopina (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km SE Valtopina (PG), on

  • 20-05-2022 02:16:09 (UTC)
  • 20-05-2022 04:16:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0230, 12.7960 at 11 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
Valtopina PG 5 1398 1398
Nocera Umbra PG 10 5839 7237
Foligno PG 11 57155 64392
Spello PG 11 8645 73037
Serravalle di Chienti MC 14 1070 74107
Assisi PG 16 28299 102406
Trevi PG 17 8469 110875
Monte Cavallo MC 17 145 111020
Cannara PG 18 4305 115325
Bevagna PG 18 5081 120406
Sellano PG 18 1079 121485
Montefalco PG 18 5679 127164
Sefro MC 19 422 127586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
53 Km N of Terni (111501 inhabitants)
84 Km W of Teramo (54892 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Fano (60888 inhabitants)
99 Km S of Pesaro (94582 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 2022-05-20
02:16:09		 43.0227 12.7965 11 2022-05-20
02:26:00		 Sala Sismica INGV-Roma 104890361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-20 02:16:09 ± 0.05
Latitude 43.0227 ± 0.0027
Longitude 12.7965 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104890361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 333
Semi-minor axis of confidence ellipse (meter) 149
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33815
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 104890361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-20 02:26:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2022-05-20T02:16:36.79 3.0 negative manual P 0.67 0
IV.PIEI.HHZ. 2022-05-20T02:16:29.73 3.0 undecidable manual S 0 0
IV.MURB.HHZ. 2022-05-20T02:16:22.41 0.6 undecidable manual S 321 34.5432 50 0.67 41
IV.GAVE.EHZ. 2022-05-20T02:16:22.55 0.6 undecidable manual S 168 37.5291 50 0.03 48
IV.NRCA.HHZ. 2022-05-20T02:16:21.34 0.6 undecidable manual S 129 33.2445 50 -0.05 48
IV.SNTG.HHZ. 2022-05-20T02:16:20.11 0.6 undecidable manual S 24 28.2495 50 0.05 48
IV.FOSV.EHZ. 2022-05-20T02:16:20.46 0.6 undecidable manual S 355 30.3474 50 -0.15 47
IV.MOMA.HHZ. 2022-05-20T02:16:20.67 0.6 undecidable manual S 217 30.4473 50 0.03 48
IV.ARVD.HHZ. 2022-05-20T02:16:19.72 3.0 undecidable manual P -0.15 0
IV.MMO1.EHZ. 2022-05-20T02:16:18.43 3.0 negative manual P -0.09 0
IV.SSFR.HHZ. 2022-05-20T02:16:18.22 3.0 undecidable manual P -0.3 0
IV.ATCC.EHZ. 2022-05-20T02:16:18.37 0.6 undecidable manual S 325 22.0668 50 -0.03 49
IV.FDMO.HHZ. 2022-05-20T02:16:18.68 0.6 undecidable manual S 86 23.6541 50 -0.14 48
IV.GAVE.EHZ. 2022-05-20T02:16:17.44 0.6 undecidable manual P 168 37.5291 50 0.22 46
IV.MURB.HHZ. 2022-05-20T02:16:16.75 0.1 undecidable manual P 321 34.5432 50 -0.02 96
IV.NRCA.HHZ. 2022-05-20T02:16:16.47 0.1 negative manual P 129 33.2445 50 -0.09 95
IV.MC2.EHZ. 2022-05-20T02:16:16.49 3.0 undecidable manual P -0.21 0
IV.FOSV.EHZ. 2022-05-20T02:16:16.01 0.6 negative manual P 355 30.3474 50 -0.11 47
IV.MOMA.HHZ. 2022-05-20T02:16:16.05 0.3 positive manual P 217 30.4473 50 -0.08 71
IV.FDMO.HHZ. 2022-05-20T02:16:15.08 0.3 negative manual P 86 23.6541 50 0 74
IV.ASSB.HHZ. 2022-05-20T02:16:15.15 0.6 undecidable manual S 281 11.3775 133 -0.26 47
IV.SNTG.HHZ. 2022-05-20T02:16:15.70 0.6 positive manual P 24 28.2495 50 -0.1 48
IV.CESI.HHZ. 2022-05-20T02:16:14.94 0.6 undecidable manual S 103 8.9799 140 0.1 49
IV.ATCC.EHZ. 2022-05-20T02:16:14.77 0.3 positive manual P 325 22.0668 50 -0.07 73
IV.ASSB.HHZ. 2022-05-20T02:16:13.11 0.1 undecidable manual P 281 11.3775 133 -0.01 100
IV.CESI.HHZ. 2022-05-20T02:16:12.94 0.1 negative manual P 103 8.9799 140 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.0001036 0.44 AML other m 2022-05-20T02:16:15.24
IV.CESI.HHN. ML:1.0 0.00013045 0.28 AML other m 2022-05-20T02:16:15.28
IV.ASSB.HHE. ML:1.4 0.000254 1.04 AML other m 2022-05-20T02:16:15.94
IV.ASSB.HHN. ML:1.2 0.00017649999999999998 0.3 AML other m 2022-05-20T02:16:15.42
IV.ATCC.EHE. ML:1.3 0.000132 0.28 AML other m 2022-05-20T02:16:18.83
IV.ATCC.EHN. ML:1.2 0.00011130000000000001 1.52 AML other m 2022-05-20T02:16:18.79
IV.FDMO.HHN. ML:1.3 0.000133 1.54 AML other m 2022-05-20T02:16:19.03
IV.FDMO.HHE. ML:1.1 0.00008115 0.12 AML other m 2022-05-20T02:16:19.28
IV.SNTG.HHE. ML:0.6 0.000019450000000000002 0.78 AML other m 2022-05-20T02:16:21.45
IV.FOSV.EHE. ML:0.8 0.00003085 0.14 AML other m 2022-05-20T02:16:21.24
IV.MOMA.HHN. ML:1.2 0.000068 0.14 AML other m 2022-05-20T02:16:21.46
IV.FOSV.EHN. ML:0.7 0.000023800000000000003 0.12 AML other m 2022-05-20T02:16:21.46
IV.MOMA.HHE. ML:1.2 0.00007685 1.22 AML other m 2022-05-20T02:16:21.23
IV.NRCA.HHE. ML:1.2 0.000059300000000000005 0.56 AML other m 2022-05-20T02:16:22.18
IV.MURB.HHE. ML:1.7 0.0001825 0.24 AML other m 2022-05-20T02:16:22.85
IV.NRCA.HHN. ML:1.2 0.0000659 0.94 AML other m 2022-05-20T02:16:22.99
IV.GAVE.EHN. ML:1.3 0.00007425 0.58 AML other m 2022-05-20T02:16:23.46
IV.SNTG.HHN. ML:0.6 0.000019200000000000003 1.06 AML other m 2022-05-20T02:16:23.10
IV.GAVE.EHE. ML:1.4 0.00008515000000000001 0.2 AML other m 2022-05-20T02:16:23.66
IV.MURB.HHN. ML:1.7 0.000186 1.72 AML other m 2022-05-20T02:16:24.02
IV.SSFR.HHE. ML:1.1 0.0000385 1.2 AML other m 2022-05-20T02:16:25.80
IV.SSFR.HHN. ML:1.1 0.00004195 0.14 AML other m 2022-05-20T02:16:25.92
IV.ARVD.HHE. ML:0.6 0.000009875 1.14 AML other m 2022-05-20T02:16:28.02
IV.PIEI.HHN. ML:0.9 0.00001465 1.16 AML other m 2022-05-20T02:16:30.35
IV.ARVD.HHN. ML:0.3 0.00000713 0.88 AML other m 2022-05-20T02:16:32.28
IV.PIEI.HHE. ML:0.9 0.000014499999999999998 0.9 AML other m 2022-05-20T02:16:32.33
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