Earthquake with magnitude of ML 1.1 on date 31-07-2022 and time 00:56:45 (UTC) in region 4 km NE Castel Ritaldi (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km NE Castel Ritaldi (PG), on

  • 31-07-2022 00:56:45 (UTC)
  • 31-07-2022 02:56:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8550, 12.7050 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
Castel Ritaldi PG 4 3278 3278
Trevi PG 4 8469 11747
Montefalco PG 6 5679 17426
Campello sul Clitunno PG 7 2442 19868
Giano dell'Umbria PG 11 3846 23714
Foligno PG 11 57155 80869
Bevagna PG 12 5081 85950
Gualdo Cattaneo PG 14 6155 92105
Spoleto PG 14 38218 130323
Spello PG 16 8645 138968
Vallo di Nera PG 16 364 139332
Massa Martana PG 17 3770 143102
Sant'Anatolia di Narco PG 17 564 143666
Cerreto di Spoleto PG 18 1075 144741
Cannara PG 19 4305 149046
Sellano PG 19 1079 150125
Scheggino PG 19 461 150586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Foligno (57155 inhabitants)
33 Km N of Terni (111501 inhabitants)
38 Km SE of Perugia (166134 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
85 Km W of Teramo (54892 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km SE of Arezzo (99543 inhabitants)
99 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 2022-07-31
00:56:45
42.8552 12.7048 10 2022-07-31
01:53:25
Sala Sismica INGV-Roma 107894931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-31 00:56:45 ± 0.06
Latitude 42.8552 ± 0.0027
Longitude 12.7048 ± 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 107894931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 351
Semi-minor axis of confidence ellipse (meter) 269
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
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 37
Number of defining phases 36
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58366
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 107894931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-31 01:53:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2022-07-31T00:57:09.90 3.0 undecidable manual P 0.05 0
IV.SSFR.HHZ. 2022-07-31T00:57:06.15 0.3 undecidable manual S 6 64.7907 50 0.4 64
IV.EL6.EHZ. 2022-07-31T00:57:05.25 0.3 undecidable manual S 31 61.6938 50 0.34 65
IV.SMA1.EHZ. 2022-07-31T00:57:04.43 1.0 undecidable manual S 116 57.0984 50 0.73 19
IV.MMO1.EHZ. 2022-07-31T00:57:02.20 0.3 undecidable manual S 84 50.8158 50 0.18 68
IV.MGAB.HHZ. 2022-07-31T00:57:01.25 1.0 undecidable manual S 278 48.618 50 -0.18 23
IV.CSP1.EHZ. 2022-07-31T00:57:01.63 0.3 undecidable manual S 57 48.3183 50 0.27 68
IV.MC2.EHZ. 2022-07-31T00:56:59.37 0.6 undecidable manual S 81 39.8268 50 0.28 46
IV.LNSS.HNE. 2022-07-31T00:56:59.11 0.3 undecidable manual S 136 39.1275 50 0.21 70
IV.FDMO.HHZ. 2022-07-31T00:56:58.23 0.3 undecidable manual S 57 37.0296 50 -0.11 71
IV.ATCC.EHZ. 2022-07-31T00:56:58.32 0.3 undecidable manual S 352 37.0296 50 -0.01 73
IV.MML1.EHZ. 2022-07-31T00:56:57.74 0.3 undecidable manual S 37 35.9418 50 -0.31 69
IV.SSFR.HHZ. 2022-07-31T00:56:57.49 0.6 undecidable manual P 6 64.7907 50 0.19 44
IV.NRCA.HHZ. 2022-07-31T00:56:57.18 0.3 undecidable manual S 94 33.3444 50 -0.19 71
IV.SMA1.EHZ. 2022-07-31T00:56:56.87 0.3 undecidable manual P 116 57.0984 50 0.76 57
IV.EL6.EHZ. 2022-07-31T00:56:56.84 0.1 undecidable manual P 31 61.6938 50 0.03 92
IV.FEMA.HNE. 2022-07-31T00:56:56.39 0.3 undecidable manual S 67 30.4473 50 -0.19 71
IT.MTCL.HGE. 2022-07-31T00:56:55.75 0.3 undecidable manual S 57 28.4493 50 -0.3 69
IV.MMO1.EHZ. 2022-07-31T00:56:55.09 0.6 positive manual P 84 50.8158 50 -0.05 47
IV.CESX.HHZ. 2022-07-31T00:56:55.91 0.3 undecidable manual S 199 28.9488 50 -0.29 70
IV.CSP1.EHZ. 2022-07-31T00:56:54.70 0.3 undecidable manual P 57 48.3183 50 -0.06 70
IV.CESI.HHZ. 2022-07-31T00:56:54.23 0.3 undecidable manual S 44 23.2545 113 -0.29 70
IV.MGAB.HHZ. 2022-07-31T00:56:54.83 0.6 undecidable manual P 278 48.618 50 0.03 47
IV.MC2.EHZ. 2022-07-31T00:56:53.49 0.3 undecidable manual P 81 39.8268 50 0.04 72
IV.LNSS.HNE. 2022-07-31T00:56:53.25 0.3 undecidable manual P 136 39.1275 50 -0.09 71
IV.ATCC.EHZ. 2022-07-31T00:56:52.86 0.3 undecidable manual P 352 37.0296 50 -0.15 71
IV.FEMA.HNE. 2022-07-31T00:56:52.04 0.3 undecidable manual P 67 30.4473 50 0.04 73
IV.NRCA.HHZ. 2022-07-31T00:56:52.25 0.1 undecidable manual P 94 33.3444 50 -0.21 94
IV.MML1.EHZ. 2022-07-31T00:56:52.66 0.1 undecidable manual P 37 35.9418 50 -0.19 94
IV.FDMO.HHZ. 2022-07-31T00:56:52.89 0.6 positive manual P 57 37.0296 50 -0.13 47
IV.CESX.HHZ. 2022-07-31T00:56:51.64 0.1 undecidable manual P 199 28.9488 50 -0.14 96
IT.FOPC.HGZ. 2022-07-31T00:56:51.49 0.3 undecidable manual S 359 12.6762 128 0.14 74
IT.GNU.HGZ. 2022-07-31T00:56:51.18 0.6 undecidable manual S 243 12.3765 129 -0.07 50
IT.MTCL.HGE. 2022-07-31T00:56:51.69 0.1 undecidable manual P 57 28.4493 50 -0.01 98
IV.CESI.HHZ. 2022-07-31T00:56:50.73 0.1 positive manual P 44 23.2545 113 -0.08 98
IT.FOPC.HGZ. 2022-07-31T00:56:49.05 0.1 undecidable manual P 359 12.6762 128 0.07 100
IT.GNU.HGZ. 2022-07-31T00:56:49.11 0.1 undecidable manual P 243 12.3765 129 0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.2 0.00010669999999999999 0.26 AML other m 2022-07-31T00:56:54.45
IV.CESI.HHE. ML:0.8 0.00004493253499999999 0.12 AML other m 2022-07-31T00:56:54.74
IV.CESX.HHN. ML:1.2 0.00007759002 0.34 AML other m 2022-07-31T00:56:56.84
IV.CESX.HHE. ML:1.2 0.0000722 0.3 AML other m 2022-07-31T00:56:57.42
IV.NRCA.HHN. ML:1.2 0.00006245 0.36 AML other m 2022-07-31T00:56:57.70
IV.MML1.EHN. ML:0.9 0.00003195 0.28 AML other m 2022-07-31T00:56:58.54
IV.NRCA.HHE. ML:1.2 0.00007045 1.4 AML other m 2022-07-31T00:56:58.86
IV.FDMO.HHE. ML:1.0 0.00003481029500000001 0.1 AML other m 2022-07-31T00:56:59.66
IV.FDMO.HHN. ML:0.8 0.00002633692 0.12 AML other m 2022-07-31T00:56:58.89
IV.ATCC.EHE. ML:1.0 0.000039999999999999996 0.78 AML other m 2022-07-31T00:56:59.79
IV.ATCC.EHN. ML:1.0 0.00003355479 0.12 AML other m 2022-07-31T00:56:58.99
IV.MML1.EHE. ML:0.8 0.00002688315 0.18 AML other m 2022-07-31T00:57:00.58
IV.MGAB.HHN. ML:0.9 0.0000203 1.28 AML other m 2022-07-31T00:57:02.73
IV.MMO1.EHE. ML:1.3 0.000055131429999999994 0.22 AML other m 2022-07-31T00:57:02.61
IV.MMO1.EHN. ML:1.4 0.000061121335 0.2 AML other m 2022-07-31T00:57:02.98
IV.MGAB.HHE. ML:0.9 0.000019549999999999997 0.44 AML other m 2022-07-31T00:57:04.59
IV.SSFR.HHN. ML:0.0 0.000033905420000000004 0.24 AML other m 2022-07-31T00:57:07.69
IV.SSFR.HHE. ML:0.0 0.000028054910000000002 0.18 AML other m 2022-07-31T00:57:08.33
IV.MC2.EHE. ML:1.4 0.00008624349500000001 0.16 AML other m 2022-07-31T00:57:01.02
IV.MC2.EHN. ML:1.5 0.000114411985 0.26 AML other m 2022-07-31T00:57:01.54
IV.CSP1.EHE. ML:1.3 0.000055445465 0.14 AML other m 2022-07-31T00:57:01.97
IV.CSP1.EHN. ML:1.5 0.00008216931999999999 0.18 AML other m 2022-07-31T00:57:02.08
IV.EL6.EHE. ML:1.1 0.000023685981 0.32 AML other m 2022-07-31T00:57:08.07
IV.SMA1.EHE. ML:0.8 0.000013526882 0.44 AML other m 2022-07-31T00:57:11.10
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