Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 15-09-2020 and time 12:48:18 (UTC) in region 10 km SW Serravalle di Chienti (MC)

A magnitude ML 0.9 earthquake occured in region: 10 km SW Serravalle di Chienti (MC), on

  • 15-09-2020 12:48:18 (UTC)
  • 15-09-2020 14:48:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0080, 12.8740 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 10 1070 1070
Monte Cavallo MC 11 145 1215
Valtopina PG 11 1398 2613
Nocera Umbra PG 13 5839 8452
Sellano PG 14 1079 9531
Foligno PG 15 57155 66686
Pieve Torina MC 15 1458 68144
Muccia MC 16 915 69059
Spello PG 17 8645 77704
Sefro MC 17 422 78126
Trevi PG 18 8469 86595
Fiordimonte MC 18 202 86797
Pievebovigliana MC 18 866 87663
Visso MC 20 1107 88770
Preci PG 20 724 89494

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
94 Km S of Fano (60888 inhabitants)
95 Km SE of Arezzo (99543 inhabitants)
101 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
Bulletin
Rev1000 		ML 0.9 2020-09-15
12:48:18		 43.0077 12.8737 9 2021-02-26
14:55:58		 Bollettino Sismico Italiano INGV 83645771
Reviewed
Rev100 		ML 0.9 2020-09-15
12:48:18		 43.0083 12.8712 8 2020-09-15
13:02:43		 Sala Sismica INGV-Roma 82928861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-15 12:48:18 ± 0.05
Latitude 43.0077 ± 0.0027
Longitude 12.8737 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83645771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 276
Semi-minor axis of confidence ellipse (meter) 146
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
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) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.43347
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 83645771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-09 13:01:56

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 82928861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-15 13:02:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-09-15T12:48:32.12 0.6 undecidable manual S 27 40.1265 50 0 48
IV.MOMA.HHE. 2020-09-15T12:48:30.55 0.3 undecidable manual S 228 33.4443 50 0.22 69
IV.GAVE.EHZ. 2020-09-15T12:48:30.65 0.3 undecidable manual S 177 35.0427 50 -0.1 71
IV.PF6.EHZ. 2020-09-15T12:48:29.08 0.6 undecidable manual S 61 29.748 106 -0.01 49
IV.MC2.EHZ. 2020-09-15T12:48:28.47 0.3 undecidable manual S 113 27.75 107 0.05 74
IV.ATCC.HNN. 2020-09-15T12:48:28.52 0.6 undecidable manual S 316 27.3504 107 0.23 47
IV.NRCA.HHZ. 2020-09-15T12:48:28.33 0.3 undecidable manual S 135 27.4503 107 -0.01 74
IV.LNSS.HNZ. 2020-09-15T12:48:27.14 0.3 undecidable manual P 163 46.9197 50 -0.2 69
IV.SSFR.HHN. 2020-09-15T12:48:27.47 0.6 undecidable manual P 351 48.1185 50 -0.06 47
IV.EL6.EHZ. 2020-09-15T12:48:26.11 0.3 undecidable manual P 27 40.1265 50 -0.19 69
IV.MURB.HHE. 2020-09-15T12:48:26.55 0.1 undecidable manual P 315 40.0266 50 0.27 93
IV.ASSB.HHZ. 2020-09-15T12:48:25.05 0.3 undecidable manual S 283 17.871 115 -0.17 74
IV.FDMO.HHZ. 2020-09-15T12:48:25.32 0.3 undecidable manual S 79 17.5713 116 0.18 73
IV.MOMA.HHE. 2020-09-15T12:48:25.63 0.3 undecidable manual P 228 33.4443 50 0.36 68
IV.GAVE.EHZ. 2020-09-15T12:48:25.36 0.3 undecidable manual P 177 35.0427 50 -0.15 71
IV.ATCC.HNN. 2020-09-15T12:48:24.06 0.3 undecidable manual P 316 27.3504 107 -0.03 74
IV.PF6.EHZ. 2020-09-15T12:48:24.14 0.1 undecidable manual P 61 29.748 106 -0.41 90
IV.MC2.EHZ. 2020-09-15T12:48:24.37 0.3 undecidable manual P 113 27.75 107 0.2 71
IV.MML1.HNE. 2020-09-15T12:48:24.16 0.3 undecidable manual S 34 14.1747 121 0.07 75
IV.FEMA.HNZ. 2020-09-15T12:48:24.67 0.3 undecidable manual S 109 15.1737 119 0.29 71
IV.NRCA.HHZ. 2020-09-15T12:48:23.94 0.1 undecidable manual P 135 27.4503 107 -0.18 96
IT.MTCL.HGZ. 2020-09-15T12:48:23.04 0.6 undecidable manual S 98 10.2786 129 0.05 50
IV.ASSB.HHZ. 2020-09-15T12:48:22.23 0.1 undecidable manual P 283 17.871 115 -0.09 100
IV.FDMO.HHZ. 2020-09-15T12:48:22.43 0.1 undecidable manual P 79 17.5713 116 0.15 98
IT.MTCL.HGZ. 2020-09-15T12:48:21.20 0.3 undecidable manual P 98 10.2786 129 0.17 74
IV.MML1.HNE. 2020-09-15T12:48:21.78 0.1 undecidable manual P 34 14.1747 121 0.11 99
IV.FEMA.HNZ. 2020-09-15T12:48:21.88 0.6 undecidable manual P 109 15.1737 119 0.04 50
IV.CESI.HHZ. 2020-09-15T12:48:20.84 0.6 undecidable manual S 97 2.4975 163 -0.59 47
IV.CESI.HHZ. 2020-09-15T12:48:19.91 0.1 undecidable manual P 97 2.4975 163 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.9 0.000070437535 0.1216 AML other m 2020-09-15T12:48:25.31
IV.ASSB.HHN. ML:1.2 0.000125134995 0.1408 AML other m 2020-09-15T12:48:25.34
IV.FDMO.HHE. ML:0.9 0.00007327776499999999 0.1408 AML other m 2020-09-15T12:48:25.52
IV.FDMO.HHN. ML:0.8 0.000052435789999999996 0.16 AML other m 2020-09-15T12:48:25.51
IV.NRCA.HHN. ML:0.9 0.000038926745 0.16 AML other m 2020-09-15T12:48:28.85
IV.NRCA.HHE. ML:0.9 0.000042422194999999995 0.1408 AML other m 2020-09-15T12:48:29.21
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