Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-07-2021 and time 01:15:17 (Italy) in region 4 km W Sefro (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km W Sefro (MC), on

  • 07-07-2021 23:15:17 (UTC)
  • 08-07-2021 01:15:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1380, 12.9080 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.

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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
Sefro MC 4 422 422
Fiuminata MC 6 1402 1824
Pioraco MC 8 1134 2958
Serravalle di Chienti MC 8 1070 4028
Nocera Umbra PG 10 5839 9867
Muccia MC 13 915 10782
Camerino MC 13 6974 17756
Esanatoglia MC 13 2034 19790
Gualdo Tadino PG 14 15208 34998
Castelraimondo MC 15 4587 39585
Valtopina PG 15 1398 40983
Pieve Torina MC 16 1458 42441
Matelica MC 16 9981 52422
Pievebovigliana MC 17 866 53288
Gagliole MC 17 620 53908
Monte Cavallo MC 18 145 54053
Fiordimonte MC 19 202 54255

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Foligno (57155 inhabitants)
42 Km E of Perugia (166134 inhabitants)
68 Km NE of Terni (111501 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
79 Km S of Fano (60888 inhabitants)
84 Km NW of Teramo (54892 inhabitants)
86 Km S of Pesaro (94582 inhabitants)
91 Km E of Arezzo (99543 inhabitants)
96 Km NW of L'Aquila (69753 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 1.2 2021-07-07
23:15:17		 43.1378 12.9085 9 2021-07-07
23:20:48		 Sala Sismica INGV-Roma 92386431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-07 23:15:17 ± 0.04
Latitude 43.1378 ± 0.0027
Longitude 12.9085 ± 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 92386431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 138
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48114
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 92386431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-07 23:20:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TST02.HHZ. 2021-07-07T23:16:05.18 3.0 undecidable manual Sn -0.84 0
IV.NARO.HHZ. 2021-07-07T23:15:36.52 3.0 undecidable manual S -0.56 0
IV.ATVO.HHZ. 2021-07-07T23:15:33.69 0.3 undecidable manual S 304 48.7179 50 0.13 70
IV.FRON.EHZ. 2021-07-07T23:15:32.52 0.6 undecidable manual S 341 44.622 50 0.06 48
IV.ARVD.HHZ. 2021-07-07T23:15:31.22 0.3 undecidable manual S 4 40.0266 50 -0.01 73
IV.MMO1.EHZ. 2021-07-07T23:15:31.81 0.6 undecidable manual S 128 43.0236 50 -0.22 46
IV.GUMA.HHZ. 2021-07-07T23:15:30.54 0.3 undecidable manual S 103 35.5422 50 0.5 66
IV.NRCA.HHZ. 2021-07-07T23:15:30.36 0.6 undecidable manual S 154 37.629 50 -0.24 46
IV.MURB.HHZ. 2021-07-07T23:15:29.77 0.6 undecidable manual S 294 34.0437 50 0.15 48
IV.CING.HHZ. 2021-07-07T23:15:29.79 0.6 undecidable manual S 41 35.1426 50 -0.13 48
IV.MC2.EHZ. 2021-07-07T23:15:29.96 0.6 undecidable manual S 138 33.9438 50 0.37 45
IV.NARO.HHZ. 2021-07-07T23:15:28.13 3.0 positive manual P -0.32 0
IV.ARRO.EHZ. 2021-07-07T23:15:28.73 3.0 negative manual P -0.21 0
IV.PIEI.HHZ. 2021-07-07T23:15:27.34 1.0 negative manual P 326 53.4021 50 -0.19 23
IV.EL6.EHZ. 2021-07-07T23:15:27.15 0.6 undecidable manual S 36 26.3514 109 -0.09 49
IV.MF5.EHZ. 2021-07-07T23:15:27.31 1.0 negative manual P 110 47.7189 50 0.67 20
IV.MPAG.EHZ. 2021-07-07T23:15:27.96 3.0 positive manual P 0 0
IV.ATCC.EHZ. 2021-07-07T23:15:26.21 0.6 undecidable manual S 284 22.3554 112 0.28 47
IV.ATVO.HHZ. 2021-07-07T23:15:26.93 0.6 undecidable manual P 304 48.7179 50 0.12 47
IV.GAVE.EHZ. 2021-07-07T23:15:26.59 3.0 negative manual P -0.09 0
IV.MMO1.EHZ. 2021-07-07T23:15:25.71 0.6 positive manual P 128 43.0236 50 -0.22 46
IV.FRON.EHZ. 2021-07-07T23:15:25.84 1.0 undecidable manual P 341 44.622 50 -0.33 22
IV.FOSV.EHZ. 2021-07-07T23:15:25.35 0.6 undecidable manual S 326 21.0678 113 -0.18 48
IV.ASSB.HHZ. 2021-07-07T23:15:25.72 0.6 undecidable manual S 242 22.8549 111 -0.37 46
IV.ARVD.HHZ. 2021-07-07T23:15:25.17 0.6 undecidable manual P 4 40.0266 50 -0.3 46
IV.MC2.EHZ. 2021-07-07T23:15:24.64 1.0 undecidable manual P 138 33.9438 50 0.12 24
IV.FDMO.HHZ. 2021-07-07T23:15:24.56 0.6 undecidable manual S 128 18.3705 116 -0.1 49
IV.NRCA.HHZ. 2021-07-07T23:15:24.80 0.1 positive manual P 154 37.629 50 -0.31 92
IV.MURB.HHZ. 2021-07-07T23:15:24.48 0.6 undecidable manual P 294 34.0437 50 -0.06 48
IV.GUMA.HHZ. 2021-07-07T23:15:24.92 1.0 negative manual P 103 35.5422 50 0.14 24
IV.CING.HHZ. 2021-07-07T23:15:24.56 0.1 positive manual P 41 35.1426 50 -0.14 95
IV.SSFR.HHZ. 2021-07-07T23:15:24.37 1.0 undecidable manual P 343 34.6431 50 -0.27 23
IV.CESI.HHZ. 2021-07-07T23:15:23.60 0.6 undecidable manual S 181 14.7741 121 0.04 50
IV.EL6.EHZ. 2021-07-07T23:15:23.18 0.1 positive manual P 36 26.3514 109 0.02 99
IV.ASSB.HHZ. 2021-07-07T23:15:22.45 0.1 positive manual P 242 22.8549 111 -0.05 99
IV.ATCC.EHZ. 2021-07-07T23:15:22.56 0.1 positive manual P 284 22.3554 112 0.15 97
IV.FOSV.EHZ. 2021-07-07T23:15:22.34 0.3 positive manual P 326 21.0678 113 0.17 73
IV.CESI.HHZ. 2021-07-07T23:15:21.12 0.1 positive manual P 181 14.7741 121 0.08 100
IV.FDMO.HHZ. 2021-07-07T23:15:21.70 1.0 undecidable manual P 128 18.3705 116 0.03 25
IV.MML1.EHZ. 2021-07-07T23:15:21.22 0.6 undecidable manual S 118 5.7942 147 -0.05 51
IV.MML1.EHZ. 2021-07-07T23:15:19.94 0.6 positive manual P 118 5.7942 147 0.22 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.HNE. ML:1.6 0.000657 1.22 AML other m 2021-07-07T23:15:22.05
IV.MML1.EHE. ML:1.6 0.0006879999999999999 1.24 AML other m 2021-07-07T23:15:22.05
IV.MML1.HNN. ML:1.4 0.0005365 1.16 AML other m 2021-07-07T23:15:22.86
IV.MML1.EHN. ML:1.4 0.000533 1.16 AML other m 2021-07-07T23:15:22.86
IV.CESI.HHN. ML:1.4 0.00024249999999999999 0.08 AML other m 2021-07-07T23:15:24.08
IV.CESI.HHE. ML:1.7 0.0004955 0.06 AML other m 2021-07-07T23:15:24.09
IV.FDMO.HHN. ML:1.0 0.00008455 0.12 AML other m 2021-07-07T23:15:25.60
IV.FDMO.HHE. ML:0.9 0.00006665000000000001 0.2 AML other m 2021-07-07T23:15:25.72
IV.FOSV.EHE. ML:1.3 0.00013895 0.34 AML other m 2021-07-07T23:15:25.72
IV.ASSB.HHN. ML:1.3 0.0001235 0.94 AML other m 2021-07-07T23:15:25.50
IV.FOSV.EHN. ML:1.4 0.000179 1.7 AML other m 2021-07-07T23:15:25.98
IV.ATCC.EHN. ML:1.3 0.0001285 0.44 AML other m 2021-07-07T23:15:26.31
IV.ATCC.EHE. ML:1.3 0.0001295 0.12 AML other m 2021-07-07T23:15:26.46
IV.ASSB.HHE. ML:1.2 0.00011 0.06 AML other m 2021-07-07T23:15:26.56
IV.EL6.EHE. ML:1.4 0.00014549999999999999 0.24 AML other m 2021-07-07T23:15:27.66
IV.EL6.EHN. ML:1.3 0.0001099 0.58 AML other m 2021-07-07T23:15:28.14
IV.SSFR.HHE. ML:1.6 0.0001715 0.14 AML other m 2021-07-07T23:15:30.53
IV.SSFR.HHN. ML:1.4 0.00010025000000000001 0.14 AML other m 2021-07-07T23:15:30.77
IV.CING.HHN. ML:0.9 0.0000333 0.78 AML other m 2021-07-07T23:15:30.76
IV.NRCA.HHN. ML:1.8 0.0002385 0.12 AML other m 2021-07-07T23:15:30.85
IV.NRCA.HHE. ML:1.6 0.0001655 0.1 AML other m 2021-07-07T23:15:31.12
IV.MURB.HHN. ML:1.2 0.00007695 0.32 AML other m 2021-07-07T23:15:31.43
IV.ARVD.HHE. ML:1.2 0.0000624 0.86 AML other m 2021-07-07T23:15:31.51
IV.CING.HHE. ML:0.9 0.0000324 1.02 AML other m 2021-07-07T23:15:31.60
IV.ARVD.HHN. ML:1.0 0.000034750000000000004 1.5 AML other m 2021-07-07T23:15:32.11
IV.GUMA.HHN. ML:1.4 0.0001095 0.38 AML other m 2021-07-07T23:15:32.68
IV.MURB.HHE. ML:1.2 0.00007105 0.22 AML other m 2021-07-07T23:15:33.01
IV.FRON.EHN. ML:1.2 0.0000471 0.28 AML other m 2021-07-07T23:15:33.79
IV.FRON.EHE. ML:0.9 0.00002455 0.6 AML other m 2021-07-07T23:15:33.61
IV.GUMA.HHE. ML:1.5 0.0001365 1.54 AML other m 2021-07-07T23:15:35.04
IV.PIEI.HHN. ML:0.8 0.0000144 1.12 AML other m 2021-07-07T23:15:35.70
IV.PIEI.HHE. ML:1.2 0.0000333 0.34 AML other m 2021-07-07T23:15:35.90
IV.MPAG.EHE. ML:0.9 0.00002155 0.9 AML other m 2021-07-07T23:15:36.71
IV.MPAG.EHN. ML:0.8 0.00001695 1.24 AML other m 2021-07-07T23:15:37.72
IV.NARO.HHN. ML:0.8 0.0000155 0.58 AML other m 2021-07-07T23:15:37.76
IV.NARO.HHE. ML:1.0 0.000020749999999999996 0.98 AML other m 2021-07-07T23:15:38.56
IV.ATVO.HHN. ML:0.6 0.000011949999999999999 0.5 AML other m 2021-07-07T23:15:38.53
IV.ATVO.HHE. ML:0.6 0.000012 0.42 AML other m 2021-07-07T23:15:41.21
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