Earthquake with magnitude of ML 1.1 on date 24-09-2021 and time 06:08:22 (Italy) in region 9 km N Valfabbrica (PG)

A magnitude ML 1.1 earthquake occured in region: 9 km N Valfabbrica (PG), on

  • 24-09-2021 04:08:22 (UTC)
  • 24-09-2021 06:08:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.237, 12.63 at 9 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
Valfabbrica PG 9 3389 3389
Fossato di Vico PG 13 2840 6229
Gualdo Tadino PG 13 15208 21437
Gubbio PG 14 32216 53653
Sigillo PG 14 2404 56057
Costacciaro PG 15 1216 57273
Assisi PG 18 28299 85572
Scheggia e Pascelupo PG 19 1393 86965
Nocera Umbra PG 19 5839 92804
Bastia Umbra PG 20 21874 114678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Perugia (166134 inhabitants)
32 Km N of Foligno (57155 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
75 Km SW of Fano (60888 inhabitants)
75 Km N of Terni (111501 inhabitants)
78 Km SW of Pesaro (94582 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
92 Km S of Rimini (147750 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 1.1 2021-09-24
04:08:22
43.2372 12.6297 9 2021-09-24
04:30:50
Sala Sismica INGV-Roma 95808771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 04:08:22 ± 0.04
Latitude 43.2372 ± 0.0018
Longitude 12.6297 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95808771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 271
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 34
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
Epicentral distance of station farthest from the epicenter (degree) 0.5369
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 95808771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 04:30:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PZUN.HHZ. 2021-09-24T04:10:06.24 3.0 undecidable manual Sg 17.959999 0
CR.STON.BHZ. 2021-09-24T04:10:03.08 3.0 undecidable manual Sg 17.18 0
IV.MFNL.HHZ. 2021-09-24T04:09:57.16 3.0 positive manual Pg 21.74 0
IV.MILN.HNZ. 2021-09-24T04:09:56.36 3.0 undecidable manual Sg 12.23 0
MN.CLTB.HHZ. 2021-09-24T04:09:50.44 3.0 positive manual Pg 12.11 0
IV.TST02.HHZ. 2021-09-24T04:09:08.89 3.0 undecidable manual Sg 2.05 0
IV.RMP.HHZ. 2021-09-24T04:09:07.04 3.0 undecidable manual Sg 2.19 0
IV.QLNO.HHZ. 2021-09-24T04:09:06.61 3.0 negative manual Pn 1.93 0
IV.VOBA.EHZ. 2021-09-24T04:08:58.63 3.0 negative manual Pg 3.87 0
IV.FIR.HHZ. 2021-09-24T04:08:52.97 3.0 undecidable manual S -1.86 0
GU.GRAM.HHZ. 2021-09-24T04:08:51.88 3.0 undecidable manual Pn 2.82 0
IV.NRCA.HHZ. 2021-09-24T04:08:41.52 0.1 undecidable manual S 139 0.5369 50 0.28 86
IV.FDMO.HHZ. 2021-09-24T04:08:37.17 0.1 undecidable manual S 121 0.3894 50 0.3 89
IV.APEC.HHZ. 2021-09-24T04:08:36.20 0.1 undecidable manual S 335 0.3552 50 0.34 88
IV.CESI.HHZ. 2021-09-24T04:08:34.34 0.6 undecidable manual S 139 0.3067 50 -0.09 47
IV.MML1.EHZ. 2021-09-24T04:08:33.42 0.1 undecidable manual S 116 0.2779 106 -0.09 95
IV.NRCA.HHZ. 2021-09-24T04:08:33.44 0.3 undecidable manual P 139 0.5369 50 0.18 66
IV.FRON.EHZ. 2021-09-24T04:08:33.59 0.1 undecidable manual S 14 0.2887 50 -0.31 90
IV.FIR.HHZ. 2021-09-24T04:08:33.86 3.0 undecidable manual P -1.11 0
IV.MGAB.HHZ. 2021-09-24T04:08:33.00 3.0 negative manual P 4.05 0
IV.FAGN.HHZ. 2021-09-24T04:08:32.33 3.0 undecidable manual P -2.43 0
IV.ATBU.EHE. 2021-09-24T04:08:32.64 0.1 undecidable manual S 346 0.2455 108 0.33 90
IV.ATPI.EHZ. 2021-09-24T04:08:32.96 0.1 undecidable manual S 322 0.2698 106 -0.24 92
IV.ATVO.HHZ. 2021-09-24T04:08:31.13 0.3 undecidable manual S 312 0.2176 110 -0.15 71
IV.SNTG.HHZ. 2021-09-24T04:08:31.65 0.1 undecidable manual S 85 0.2266 109 0.02 97
IV.SSFR.HNN. 2021-09-24T04:08:31.59 0.3 undecidable manual S 29 0.2275 109 -0.06 72
IV.FDMO.HHZ. 2021-09-24T04:08:30.49 0.1 undecidable manual P 121 0.3894 50 -0.25 89
IV.ATSC.EHN. 2021-09-24T04:08:30.51 0.1 undecidable manual S 12 0.1916 112 0.17 95
IV.ASSB.HHZ. 2021-09-24T04:08:30.37 0.1 undecidable manual S 174 0.1961 112 -0.13 95
IV.APEC.HHZ. 2021-09-24T04:08:30.30 0.1 undecidable manual P 335 0.3552 50 0.14 92
IV.CESI.HHZ. 2021-09-24T04:08:29.24 0.1 undecidable manual P 139 0.3067 50 -0.09 94
IV.ATLO.EHN. 2021-09-24T04:08:29.82 0.1 undecidable manual S 296 0.1799 114 -0.11 96
IV.FRON.EHZ. 2021-09-24T04:08:28.77 0.3 undecidable manual P 14 0.2887 50 -0.25 68
IV.ATFO.HHZ. 2021-09-24T04:08:28.73 0.3 undecidable manual S 342 0.1358 120 0.3 70
IV.ATPI.EHZ. 2021-09-24T04:08:28.50 0.1 undecidable manual P 322 0.2698 106 -0.12 94
IV.MML1.EHZ. 2021-09-24T04:08:28.90 0.6 undecidable manual P 116 0.2779 106 0.1 47
IV.MURB.HHZ. 2021-09-24T04:08:27.04 0.1 undecidable manual S 289 0.0809 134 0.32 94
IV.SNTG.HHZ. 2021-09-24T04:08:27.67 0.1 undecidable manual P 85 0.2266 109 -0.05 96
IV.SSFR.HNN. 2021-09-24T04:08:27.62 0.1 undecidable manual P 29 0.2275 109 -0.11 95
IV.ATVO.HHZ. 2021-09-24T04:08:27.29 0.1 undecidable manual P 312 0.2176 110 -0.22 93
IV.ATBU.EHE. 2021-09-24T04:08:27.95 0.1 undecidable manual P 346 0.2455 108 -0.16 94
IV.ATLO.EHN. 2021-09-24T04:08:26.64 0.1 undecidable manual P 296 0.1799 114 -0.09 96
IV.ATCC.EHZ. 2021-09-24T04:08:26.10 0.1 undecidable manual S 172 0.0522 146 0.07 99
IV.ATFO.HHZ. 2021-09-24T04:08:26.01 0.1 undecidable manual P 342 0.1358 120 0.14 96
IV.ATSC.EHN. 2021-09-24T04:08:26.81 0.1 undecidable manual P 12 0.1916 112 -0.16 95
IV.ASSB.HHZ. 2021-09-24T04:08:26.95 0.3 undecidable manual P 174 0.1961 112 -0.11 72
IV.MURB.HHZ. 2021-09-24T04:08:25.01 0.1 undecidable manual P 289 0.0809 134 0.13 97
IV.ATCC.EHZ. 2021-09-24T04:08:24.51 0.1 undecidable manual P 172 0.0522 146 0.03 100
IV.MNTT.EHZ. 2021-09-24T04:08:23.19 3.0 negative manual P 0.61 0
IV.PE3.EHZ. 2021-09-24T04:08:16.40 3.0 positive manual P -3.24 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.6 0.00078766645 0.0992 AML other m 2021-09-24T04:08:26.31
IV.ATCC.EHE. ML:1.6 0.00067132575 0.0992 AML other m 2021-09-24T04:08:26.19
IV.MURB.HHE. ML:2.1 0.00201 0.2 AML other m 2021-09-24T04:08:27.32
IV.MURB.HNE. ML:2.2 0.00207 0.18 AML other m 2021-09-24T04:08:27.33
IV.MURB.HHN. ML:2 0.001575 0.22 AML other m 2021-09-24T04:08:28.12
IV.MURB.HNN. ML:1.9 0.001235 0.22 AML other m 2021-09-24T04:08:28.13
IV.ATFO.HHN. ML:0.8 6.074844E-5 0.1568 AML other m 2021-09-24T04:08:29.67
IV.ASSB.HHN. ML:1.4 0.0001665 0.22 AML other m 2021-09-24T04:08:30.69
IV.ASSB.HHE. ML:1.5 0.00020583615 0.16 AML other m 2021-09-24T04:08:30.75
IV.ATFO.HHE. ML:1 8.7566085E-5 0.3008 AML other m 2021-09-24T04:08:31.44
IV.ATVO.HHN. ML:1 6.07E-5 0.38 AML other m 2021-09-24T04:08:31.44
IV.ATVO.HHE. ML:1.1 7.445E-5 0.18 AML other m 2021-09-24T04:08:32.48
IV.ATPI.EHN. ML:0.9 3.765E-5 0.3 AML other m 2021-09-24T04:08:33.29
IV.MML1.EHE. ML:0.9 4.23E-5 0.16 AML other m 2021-09-24T04:08:33.86
IV.MML1.EHN. ML:0.9 3.6925225E-5 0.2208 AML other m 2021-09-24T04:08:36.14
IV.APEC.HHN. ML:1 4.145E-5 0.2 AML other m 2021-09-24T04:08:36.53
IV.ATPI.EHE. ML:0.8 3.05E-5 0.68 AML other m 2021-09-24T04:08:36.43
IV.FDMO.HHE. ML:0.9 2.37E-5 0.16 AML other m 2021-09-24T04:08:37.19
IV.FDMO.HHN. ML:1.1 3.92E-5 0.16 AML other m 2021-09-24T04:08:38.39
IV.APEC.HHE. ML:0.8 2.67E-5 0.68 AML other m 2021-09-24T04:08:39.31
IV.NRCA.HHN. ML:1.2 2.89E-5 0.12 AML other m 2021-09-24T04:08:42.48
IV.NRCA.HHE. ML:1 2.21236505E-5 0.1216 AML other m 2021-09-24T04:08:42.83
IV.MGAB.HHE. ML:1.1 3.046564E-5 0.4 AML other m 2021-09-24T04:08:43.19
IV.MGAB.HHN. ML:1.3 4.575E-5 0.58 AML other m 2021-09-24T04:08:43.37
IV.FRON.EHE. ML:1.1 5.9197775E-5 0.1984 AML other m 2021-09-24T04:08:33.67
IV.FRON.EHN. ML:1.1 5.9430625E-5 0.1792 AML other m 2021-09-24T04:08:33.75
IV.CESI.HHE. ML:0.8 3.0986705E-5 0.16 AML other m 2021-09-24T04:08:35.46
IV.CESI.HHN. ML:0.7 2.189423E-5 0.1408 AML other m 2021-09-24T04:08:35.10
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