Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 15-09-2020 and time 07:37:11 (Italy) in region 7 km W Sefro (MC)

A magnitude ML 1.5 earthquake occured in region: 7 km W Sefro (MC), on

  • 15-09-2020 05:37:11 (UTC)
  • 15-09-2020 07:37:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1400, 12.8680 at 20 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
Sefro MC 7 422 422
Nocera Umbra PG 7 5839 6261
Fiuminata MC 8 1402 7663
Serravalle di Chienti MC 10 1070 8733
Pioraco MC 11 1134 9867
Gualdo Tadino PG 12 15208 25075
Valtopina PG 13 1398 26473
Esanatoglia MC 14 2034 28507
Muccia MC 16 915 29422
Camerino MC 16 6974 36396
Castelraimondo MC 17 4587 40983
Matelica MC 17 9981 50964
Pieve Torina MC 18 1458 52422
Fossato di Vico PG 19 2840 55262
Monte Cavallo MC 20 145 55407
Pievebovigliana MC 20 866 56273
Gagliole MC 20 620 56893

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
67 Km N of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
79 Km S of Fano (60888 inhabitants)
86 Km S of Pesaro (94582 inhabitants)
87 Km NW of Teramo (54892 inhabitants)
88 Km E of Arezzo (99543 inhabitants)
98 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
Bulletin
Rev1000 		ML 1.5 2020-09-15
05:37:11		 43.1403 12.8683 20 2021-02-26
14:55:57		 Bollettino Sismico Italiano INGV 83553811
Reviewed
Rev100 		ML 1.4 2020-09-15
05:37:11		 43.1435 12.8652 20 2020-09-15
05:40:00		 Sala Sismica INGV-Roma 82918431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-15 05:37:11 ± 0.04
Latitude 43.1403 ± 0.0018
Longitude 12.8683 ± 0.0025
Depth (km) 20 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83553811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 219
Semi-minor axis of confidence ellipse (meter) 33
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) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45775
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 82918431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-15 05:40:00

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 83553811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-06 13:32:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2020-09-15T05:37:52.19 3.0 undecidable manual Sn 0.01 0
IV.BRSN.HNZ. 2020-09-15T05:37:38.01 3.0 undecidable manual P 5.19 0
IV.GAVE.EHZ. 2020-09-15T05:37:27.60 0.3 undecidable manual S 178 49.8168 104 0.26 71
IV.MMO1.EHZ. 2020-09-15T05:37:26.45 0.3 undecidable manual S 126 45.8208 105 0.13 73
IV.ARVD.HHE. 2020-09-15T05:37:24.97 0.3 undecidable manual S 8 40.1265 108 0.11 75
IV.CING.HNZ. 2020-09-15T05:37:24.43 0.3 undecidable manual S 45 37.1295 110 0.33 72
IV.NRCA.HHZ. 2020-09-15T05:37:24.90 0.3 undecidable manual S 150 39.4272 108 0.21 73
IV.ATSC.EHE. 2020-09-15T05:37:23.47 0.3 undecidable manual S 335 34.743 111 -0.03 76
IV.MC2.EHZ. 2020-09-15T05:37:23.70 0.3 undecidable manual S 134 36.3414 110 -0.21 74
IV.PF6.EHN. 2020-09-15T05:37:21.47 0.3 undecidable manual S 91 26.3514 119 -0.01 78
IV.FEMA.HNE. 2020-09-15T05:37:21.26 0.3 undecidable manual S 143 24.6531 121 0.18 75
IV.EL6.EHZ. 2020-09-15T05:37:21.95 0.3 undecidable manual S 42 28.1496 117 0.04 77
IT.MTCL.HGZ. 2020-09-15T05:37:20.03 0.3 undecidable manual S 147 19.4694 129 0.09 78
IV.FDMO.HHZ. 2020-09-15T05:37:20.34 0.3 undecidable manual S 123 21.1677 126 0.03 78
IV.GAVE.EHZ. 2020-09-15T05:37:20.48 0.3 undecidable manual P 178 49.8168 104 -0.09 74
IV.MF5.EHZ. 2020-09-15T05:37:20.57 0.6 undecidable manual P 109 50.8158 103 -0.15 48
IV.ATCC.EHZ. 2020-09-15T05:37:20.05 0.3 undecidable manual S 285 19.1697 130 0.17 76
IV.MDAR.HNN. 2020-09-15T05:37:20.78 0.3 undecidable manual S 75 22.9548 123 0.08 77
IV.ASSB.HHZ. 2020-09-15T05:37:20.10 0.3 undecidable manual S 237 20.1687 128 0.01 79
IV.CESI.HHZ. 2020-09-15T05:37:19.10 0.3 undecidable manual S 169 15.2736 137 -0.04 79
IV.MMO1.EHZ. 2020-09-15T05:37:19.83 0.3 undecidable manual P 126 45.8208 105 -0.14 73
IV.SSFR.HHN. 2020-09-15T05:37:18.52 0.3 undecidable manual P 348 33.5442 112 0.34 72
IV.NRCA.HHZ. 2020-09-15T05:37:18.94 0.1 undecidable manual P 150 39.4272 108 -0.1 100
IV.MML1.HNE. 2020-09-15T05:37:18.16 0.3 undecidable manual S 110 8.88 153 0.02 80
IV.ARVD.HHE. 2020-09-15T05:37:18.98 0.3 undecidable manual P 8 40.1265 108 -0.15 74
IV.ATSC.EHE. 2020-09-15T05:37:18.21 0.3 undecidable manual P 335 34.743 111 -0.14 75
IV.MC2.EHZ. 2020-09-15T05:37:18.63 0.3 undecidable manual P 134 36.3414 110 0.05 76
IV.CING.HNZ. 2020-09-15T05:37:18.61 0.3 undecidable manual P 45 37.1295 110 -0.09 75
IV.ATFO.HHN. 2020-09-15T05:37:18.30 0.3 undecidable manual P 316 34.743 111 -0.05 76
IV.MURB.HHZ. 2020-09-15T05:37:17.80 0.3 undecidable manual P 296 30.9468 114 -0.01 77
IV.SEF1.HNN. 2020-09-15T05:37:17.72 0.3 undecidable manual S 84 6.4935 160 -0.16 78
IV.PF6.EHN. 2020-09-15T05:37:17.10 0.3 undecidable manual P 91 26.3514 119 -0.08 77
IV.EL6.EHZ. 2020-09-15T05:37:17.38 0.3 undecidable manual P 42 28.1496 117 -0.05 77
IV.ATCC.EHZ. 2020-09-15T05:37:16.12 0.3 undecidable manual P 285 19.1697 130 -0.14 77
IV.MDAR.HNN. 2020-09-15T05:37:16.67 0.3 undecidable manual P 75 22.9548 123 -0.06 78
IV.ASSB.HHZ. 2020-09-15T05:37:16.34 0.3 undecidable manual P 237 20.1687 128 -0.04 78
IT.MTCL.HGZ. 2020-09-15T05:37:16.28 0.3 undecidable manual P 147 19.4694 129 -0.01 79
IV.FDMO.HHZ. 2020-09-15T05:37:16.44 0.3 undecidable manual P 123 21.1677 126 -0.06 78
IV.FEMA.HNE. 2020-09-15T05:37:16.83 0.3 undecidable manual P 143 24.6531 121 -0.12 76
IV.SEF1.HNN. 2020-09-15T05:37:15.02 0.3 undecidable manual P 84 6.4935 160 -0.08 79
IV.CESI.HHZ. 2020-09-15T05:37:15.83 0.3 undecidable manual P 169 15.2736 137 0 79
IV.MML1.HNE. 2020-09-15T05:37:15.24 0.3 undecidable manual P 110 8.88 153 -0.01 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.2 0.0000929 0.94 AML other m 2020-09-15T05:37:19.35
IV.CESI.HHE. ML:1.5 0.00020950000000000002 0.08 AML other m 2020-09-15T05:37:19.53
IV.ASSB.HHN. ML:1.9 0.00041200000000000004 0.24 AML other m 2020-09-15T05:37:20.39
IV.ASSB.HHE. ML:1.6 0.00020800000000000001 0.36 AML other m 2020-09-15T05:37:20.40
IV.FDMO.HHN. ML:1.4 0.0001295 0.88 AML other m 2020-09-15T05:37:20.48
IV.FDMO.HHE. ML:1.7 0.00026849999999999997 0.16 AML other m 2020-09-15T05:37:20.50
IV.ATCC.EHN. ML:1.5 0.00017199999999999998 0.28 AML other m 2020-09-15T05:37:20.37
IV.ATCC.EHE. ML:1.4 0.00013700000000000002 0.18 AML other m 2020-09-15T05:37:20.62
IV.MURB.HHE. ML:1.4 0.0000995 1.74 AML other m 2020-09-15T05:37:24.08
IV.MURB.HHN. ML:1.3 0.00007545 1 AML other m 2020-09-15T05:37:25.77
IV.GAVE.EHE. ML:1.4 0.000057 1.54 AML other m 2020-09-15T05:37:28.19
IV.GAVE.EHN. ML:1.4 0.0000571 0.16 AML other m 2020-09-15T05:37:29.37
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