Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 09-09-2021 and time 16:41:40 (Italy) in region 5 km S Serravalle di Chienti (MC)

A magnitude ML 1.2 earthquake occured in region: 5 km S Serravalle di Chienti (MC), on

  • 09-09-2021 14:41:40 (UTC)
  • 09-09-2021 16:41:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0320, 12.9670 at 13 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
Serravalle di Chienti MC 5 1070 1070
Monte Cavallo MC 5 145 1215
Pieve Torina MC 7 1458 2673
Muccia MC 9 915 3588
Fiordimonte MC 10 202 3790
Pievebovigliana MC 10 866 4656
Sefro MC 13 422 5078
Camerino MC 14 6974 12052
Visso MC 15 1107 13159
Fiastra MC 16 559 13718
Sellano PG 16 1079 14797
Pioraco MC 17 1134 15931
Nocera Umbra PG 17 5839 21770
Acquacanina MC 17 121 21891
Ussita MC 17 444 22335
Valtopina PG 18 1398 23733
Fiuminata MC 18 1402 25135
Preci PG 18 724 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
98 Km S of Pesaro (94582 inhabitants)
98 Km NE of Viterbo (67173 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 2021-09-09
14:41:40		 43.0317 12.9668 13 2021-09-09
14:49:54		 Sala Sismica INGV-Roma 95237981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-09 14:41:40 ± 0.04
Latitude 43.0317 ± 0.0018
Longitude 12.9668 ± 0.0037
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95237981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 247
Semi-minor axis of confidence ellipse (meter) 129
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
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) 89
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.39660
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 95237981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-09 14:49:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-09-09T14:41:51.96 0.3 undecidable manual S 18 34.743 95 0.13 69
IV.ASSB.HHZ. 2021-09-09T14:41:49.11 0.3 undecidable manual S 273 25.0527 98 -0.13 71
IV.SNTG.HHZ. 2021-09-09T14:41:49.20 0.3 undecidable manual S 355 24.8529 98 0 72
IV.NRCA.HHZ. 2021-09-09T14:41:49.08 0.3 undecidable manual S 151 25.0527 98 -0.16 70
IV.MURB.HHZ. 2021-09-09T14:41:48.42 0.1 undecidable manual P 306 44.0226 93 0.14 90
IV.PF6.EHZ. 2021-09-09T14:41:48.24 0.3 undecidable manual S 57 21.867 101 -0.17 70
IV.CSP1.EHZ. 2021-09-09T14:41:48.08 0.3 undecidable manual S 71 20.4684 102 0.05 73
IV.MC2.EHZ. 2021-09-09T14:41:48.65 0.3 undecidable manual S 126 22.4553 100 0.09 72
IV.EL6.EHZ. 2021-09-09T14:41:46.85 0.3 undecidable manual P 18 34.743 95 -0.01 71
IV.SNTG.HHZ. 2021-09-09T14:41:45.16 0.1 undecidable manual P 355 24.8529 98 -0.18 94
IV.MML1.EHZ. 2021-09-09T14:41:45.40 0.3 undecidable manual S 3 9.0798 134 0.06 74
IV.NRCA.HHZ. 2021-09-09T14:41:45.23 0.1 undecidable manual P 151 25.0527 98 -0.13 94
IV.ASSB.HHZ. 2021-09-09T14:41:45.29 0.1 undecidable manual P 273 25.0527 98 -0.07 96
IV.FEMA.HNZ. 2021-09-09T14:41:45.63 0.3 undecidable manual S 139 10.2786 130 0.07 74
IV.MC2.EHZ. 2021-09-09T14:41:45.21 0.1 undecidable manual P 126 22.4553 100 0.24 92
IT.MTCL.HGZ. 2021-09-09T14:41:44.56 0.3 undecidable manual S 148 4.995 153 -0.12 73
IV.PF6.EHZ. 2021-09-09T14:41:44.77 0.1 undecidable manual P 57 21.867 101 -0.12 95
IV.CSP1.EHZ. 2021-09-09T14:41:44.65 0.1 undecidable manual P 71 20.4684 102 -0.02 97
IV.CESI.HHZ. 2021-09-09T14:41:44.80 0.3 undecidable manual S 240 5.8941 149 0.01 75
IV.FEMA.HNZ. 2021-09-09T14:41:43.40 0.1 undecidable manual P 139 10.2786 130 0.16 96
IV.MML1.EHZ. 2021-09-09T14:41:43.15 0.1 undecidable manual P 3 9.0798 134 0.04 99
IT.MTCL.HGZ. 2021-09-09T14:41:42.74 0.1 undecidable manual P 148 4.995 153 0.01 100
IV.CESI.HHZ. 2021-09-09T14:41:42.90 0.1 undecidable manual P 240 5.8941 149 0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.0 0.000115766905 0.0832 AML other m 2021-09-09T14:41:44.98
IV.CESI.HHE. ML:1.2 0.0001885 0.2 AML other m 2021-09-09T14:41:44.83
IV.MML1.EHE. ML:1.3 0.000221 1.12 AML other m 2021-09-09T14:41:45.59
IV.MML1.EHN. ML:1.1 0.0001485 0.86 AML other m 2021-09-09T14:41:45.71
IV.NRCA.HHN. ML:1.6 0.0002525 0.1 AML other m 2021-09-09T14:41:49.19
IV.ASSB.HHN. ML:1.1 0.00007485 0.1 AML other m 2021-09-09T14:41:49.33
IV.SNTG.HHE. ML:0.8 0.0000409 0.12 AML other m 2021-09-09T14:41:49.38
IV.SNTG.HHN. ML:1.0 0.0000571 0.1 AML other m 2021-09-09T14:41:49.39
IV.ASSB.HHE. ML:1.2 0.0000826 0.14 AML other m 2021-09-09T14:41:49.36
IV.NRCA.HHE. ML:1.5 0.00017099999999999998 0.08 AML other m 2021-09-09T14:41:49.52
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