Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 20-09-2020 and time 21:14:27 (Italy) in region 6 km SW Serra Sant'Abbondio (PU)

A magnitude ML 1.7 earthquake occured in region: 6 km SW Serra Sant'Abbondio (PU), on

  • 20-09-2020 19:14:27 (UTC)
  • 20-09-2020 21:14:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4650, 12.7130 at 14 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
Serra Sant'Abbondio PU 6 1027 1027
Frontone PU 6 1300 2327
Cantiano PU 7 2245 4572
Scheggia e Pascelupo PG 8 1393 5965
Cagli PU 11 8731 14696
Costacciaro PG 12 1216 15912
Sassoferrato AN 12 7285 23197
Pergola PU 15 6333 29530
Sigillo PG 15 2404 31934
Gubbio PG 16 32216 64150
Acqualagna PU 17 4393 68543
Genga AN 18 1797 70340
Arcevia AN 19 4612 74952
Fossato di Vico PG 19 2840 77792

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Perugia (166134 inhabitants)
49 Km SW of Fano (60888 inhabitants)
52 Km SW of Pesaro (94582 inhabitants)
57 Km N of Foligno (57155 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
67 Km W of Ancona (100861 inhabitants)
67 Km S of Rimini (147750 inhabitants)
84 Km SE of Cesena (96758 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 1.7 2020-09-20
19:14:27		 43.4652 12.7127 14 2021-02-26
14:55:57		 Bollettino Sismico Italiano INGV 83356171
Reviewed
Rev100 		ML 1.7 2020-09-20
19:14:28		 43.4637 12.6987 10 2020-09-20
19:20:49		 Sala Sismica INGV-Roma 83076991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-20 19:14:27 ± 0.06
Latitude 43.4652 ± 0.0027
Longitude 12.7127 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83356171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 273
Semi-minor axis of confidence ellipse (meter) 139
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 62
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.51711
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 83356171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-29 08:42:41

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 83076991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-20 19:20:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-09-20T19:14:46.02 0.6 undecidable manual S 147 56.3991 93 0.57 40
IT.MTCL.HGZ. 2020-09-20T19:14:46.19 0.6 undecidable manual S 156 57.1983 93 0.52 41
IV.CSP1.EHZ. 2020-09-20T19:14:45.51 0.6 undecidable manual S 136 57.3981 93 -0.22 44
IV.CESI.HHZ. 2020-09-20T19:14:45.04 0.6 undecidable manual S 163 53.3022 93 0.39 43
IV.MML1.HNE. 2020-09-20T19:14:42.70 0.6 undecidable manual S 152 44.2224 94 0.48 42
IV.PARC.HHZ. 2020-09-20T19:14:42.24 0.6 undecidable manual S 298 43.2234 95 0.3 44
IV.SEF1.HNN. 2020-09-20T19:14:41.34 0.6 undecidable manual S 152 40.0266 95 0.23 45
IV.ATVA.EHE. 2020-09-20T19:14:41.08 0.6 undecidable manual S 239 40.2264 95 -0.06 47
IV.BADI.EHZ. 2020-09-20T19:14:41.15 0.1 undecidable manual S 278 38.0286 95 0.59 83
IV.CING.HNZ. 2020-09-20T19:14:41.72 0.6 undecidable manual S 104 40.1265 95 0.59 41
IV.EL6.EHZ. 2020-09-20T19:14:40.35 0.6 undecidable manual S 116 34.743 96 0.64 40
IV.CRTC.HNE. 2020-09-20T19:14:40.96 0.6 undecidable manual S 22 36.3414 96 0.84 37
IV.ATCC.EHZ. 2020-09-20T19:14:39.19 0.3 undecidable manual S 191 31.6461 97 0.32 68
IV.SNTG.HHZ. 2020-09-20T19:14:38.60 0.6 undecidable manual S 142 29.6481 98 0.25 46
IT.MTCL.HGZ. 2020-09-20T19:14:38.10 0.6 undecidable manual P 156 57.1983 93 -0.07 46
IV.MURB.HHZ. 2020-09-20T19:14:38.04 0.3 undecidable manual S 214 27.0507 99 0.38 68
IV.PE3.EHE. 2020-09-20T19:14:38.61 0.6 undecidable manual S 326 30.9468 98 -0.08 48
IV.ATLO.EHE. 2020-09-20T19:14:38.68 0.6 undecidable manual S 236 29.748 98 0.32 45
IV.CSP1.EHZ. 2020-09-20T19:14:38.15 0.3 undecidable manual P 136 57.3981 93 -0.05 69
IV.ATVO.HHZ. 2020-09-20T19:14:37.63 0.3 undecidable manual S 250 26.3514 100 0.17 71
IV.ATPI.EHZ. 2020-09-20T19:14:37.33 0.3 undecidable manual S 266 25.0527 101 0.19 71
IV.APEC.HHZ. 2020-09-20T19:14:37.61 0.3 undecidable manual S 294 25.752 100 0.3 69
IV.CESI.HHZ. 2020-09-20T19:14:37.19 0.1 undecidable manual P 163 53.3022 93 -0.39 86
IV.FDMO.HHZ. 2020-09-20T19:14:37.67 0.3 undecidable manual P 147 56.3991 93 -0.37 64
IV.ASSB.HHZ. 2020-09-20T19:14:36.24 0.1 undecidable manual P 185 47.1195 94 -0.37 87
IV.MMUR.HNE. 2020-09-20T19:14:36.67 0.6 undecidable manual S 96 23.0547 103 0.05 48
IV.BADI.EHZ. 2020-09-20T19:14:35.11 0.3 undecidable manual P 278 38.0286 95 -0.11 70
IV.FOSV.HNE. 2020-09-20T19:14:35.50 0.3 undecidable manual S 168 19.2696 108 -0.14 72
IV.ATMI.HHZ. 2020-09-20T19:14:35.53 0.6 undecidable manual P 248 38.628 95 0.21 46
IV.CING.HNZ. 2020-09-20T19:14:35.55 0.3 undecidable manual P 104 40.1265 95 0 71
IV.MPAG.EHZ. 2020-09-20T19:14:35.43 0.1 undecidable manual S 12 18.5703 109 -0.04 98
IV.MML1.HNE. 2020-09-20T19:14:35.85 0.1 negative manual P 152 44.2224 94 -0.33 89
IV.SEF1.HNN. 2020-09-20T19:14:35.78 0.6 undecidable manual P 152 40.0266 95 0.24 45
IV.CRTC.HNE. 2020-09-20T19:14:35.02 0.6 undecidable manual P 22 36.3414 96 0.06 47
IV.ARVD.HHZ. 2020-09-20T19:14:35.53 0.3 undecidable manual S 79 18.7701 109 0.02 74
IV.PARC.HHZ. 2020-09-20T19:14:35.82 0.1 undecidable manual P 298 43.2234 95 -0.2 91
IV.ATVA.EHE. 2020-09-20T19:14:35.60 0.1 undecidable manual P 239 40.2264 95 0.04 94
IV.ATMC.EHE. 2020-09-20T19:14:35.69 0.1 undecidable manual P 267 41.9247 95 -0.13 92
IV.NARO.HHZ. 2020-09-20T19:14:35.53 0.3 undecidable manual S 327 19.3695 108 -0.12 72
IV.COR1.EHZ. 2020-09-20T19:14:34.24 0.3 undecidable manual P 51 29.6481 98 0.3 68
IV.PE3.EHE. 2020-09-20T19:14:34.22 0.3 undecidable manual P 326 30.9468 98 0.08 71
IV.ATCC.EHZ. 2020-09-20T19:14:34.10 0.1 positive manual P 191 31.6461 97 -0.14 94
IV.ATFO.HHZ. 2020-09-20T19:14:34.88 0.3 undecidable manual S 226 15.7731 115 0.12 73
IV.EL6.EHZ. 2020-09-20T19:14:34.61 0.1 undecidable manual P 116 34.743 96 -0.12 94
IV.SSFR.HNZ. 2020-09-20T19:14:33.03 0.3 undecidable manual S 120 6.4935 148 0.14 74
IV.APEC.HHZ. 2020-09-20T19:14:33.30 0.1 positive manual P 294 25.752 100 -0.05 97
IV.ATVO.HHZ. 2020-09-20T19:14:33.15 0.1 positive manual P 250 26.3514 100 -0.29 92
IV.SNTG.HHZ. 2020-09-20T19:14:33.63 0.1 undecidable manual P 142 29.6481 98 -0.32 91
IV.MURB.HHZ. 2020-09-20T19:14:33.45 0.1 positive manual P 214 27.0507 99 -0.1 95
IV.ATPI.EHZ. 2020-09-20T19:14:33.03 0.1 positive manual P 266 25.0527 101 -0.21 94
IV.ATLO.EHE. 2020-09-20T19:14:33.67 0.1 undecidable manual P 236 29.748 98 -0.28 91
IV.ARVD.HHZ. 2020-09-20T19:14:32.17 0.1 positive manual P 79 18.7701 109 -0.14 96
IV.MPAG.EHZ. 2020-09-20T19:14:32.13 0.1 negative manual P 12 18.5703 109 -0.15 96
IV.NARO.HHZ. 2020-09-20T19:14:32.11 0.1 undecidable manual P 327 19.3695 108 -0.28 93
IV.FRON.EHZ. 2020-09-20T19:14:32.85 0.3 undecidable manual S 10 5.8941 150 0.03 75
IV.FOSV.HNE. 2020-09-20T19:14:32.10 0.1 positive manual P 168 19.2696 108 -0.28 93
IV.ATSC.EHE. 2020-09-20T19:14:32.76 0.3 undecidable manual S 205 4.995 154 0.05 75
IV.MMUR.HNE. 2020-09-20T19:14:32.84 0.3 undecidable manual P 96 23.0547 103 -0.1 72
IV.ATFO.HHZ. 2020-09-20T19:14:31.76 0.1 positive manual P 226 15.7731 115 -0.12 97
IV.SSFR.HNZ. 2020-09-20T19:14:30.77 0.1 positive manual P 120 6.4935 148 -0.02 100
IV.FRON.EHZ. 2020-09-20T19:14:30.70 0.1 negative manual P 10 5.8941 150 -0.05 99
IV.ATSC.EHE. 2020-09-20T19:14:30.67 0.1 positive manual P 205 4.995 154 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:1.8 0.00071359215 0.064 AML other m 2020-09-20T19:14:33.00
IV.FRON.EHN. ML:1.9 0.00091021405 0.0896 AML other m 2020-09-20T19:14:32.97
IV.SSFR.HHN. ML:2.3 0.002243579 0.1408 AML other m 2020-09-20T19:14:33.02
IV.SSFR.HHE. ML:2.2 0.0020017524999999996 0.192 AML other m 2020-09-20T19:14:34.76
IV.SSFR.HNN. ML:2.7 0.005591348 0.0512 AML other m 2020-09-20T19:14:33.15
IV.SSFR.HNE. ML:2.6 0.005385666000000001 0.0512 AML other m 2020-09-20T19:14:33.34
IV.ATFO.HHE. ML:1.6 0.00034214339999999997 0.1408 AML other m 2020-09-20T19:14:35.33
IV.ATFO.HHN. ML:1.7 0.0004277425 0.2816 AML other m 2020-09-20T19:14:35.58
IV.NARO.HHN. ML:1.6 0.0002460634 0.0896 AML other m 2020-09-20T19:14:35.88
IV.NARO.HHE. ML:1.8 0.00041808175000000004 0.064 AML other m 2020-09-20T19:14:35.76
IV.MPAG.EHE. ML:1.5 0.00020464715 0.1536 AML other m 2020-09-20T19:14:35.75
IV.MPAG.HNE. ML:1.5 0.00021729389999999998 0.1408 AML other m 2020-09-20T19:14:35.75
IV.MPAG.HNN. ML:1.6 0.0002705033 0.2176 AML other m 2020-09-20T19:14:35.72
IV.MPAG.EHN. ML:1.6 0.0002577228 0.2048 AML other m 2020-09-20T19:14:35.72
IV.ARVD.HHN. ML:1.9 0.0005531946 0.128 AML other m 2020-09-20T19:14:35.83
IV.ARVD.HHE. ML:1.9 0.0005583624 0.1408 AML other m 2020-09-20T19:14:35.61
IV.ATPI.EHE. ML:1.6 0.00023369445 0.4992 AML other m 2020-09-20T19:14:37.47
IV.ATPI.HNE. ML:1.6 0.00023916944499999997 0.3968 AML other m 2020-09-20T19:14:37.47
IV.ATPI.EHN. ML:1.6 0.00023624235 0.4608 AML other m 2020-09-20T19:14:37.48
IV.ATPI.HNN. ML:1.6 0.00021683175 0.4096 AML other m 2020-09-20T19:14:37.48
IV.ATVO.HHE. ML:1.5 0.000155616985 0.1536 AML other m 2020-09-20T19:14:37.75
IV.ATVO.HHN. ML:1.4 0.0001226545 0.3456 AML other m 2020-09-20T19:14:37.61
IV.APEC.HHN. ML:1.9 0.00040281505 0.1408 AML other m 2020-09-20T19:14:37.77
IV.APEC.HHE. ML:1.8 0.00029899635 0.3584 AML other m 2020-09-20T19:14:39.07
IV.MURB.HNE. ML:2.2 0.0008269712 0.3456 AML other m 2020-09-20T19:14:38.39
IV.MURB.HHN. ML:2.3 0.00098237345 0.2176 AML other m 2020-09-20T19:14:38.59
IV.MURB.HNN. ML:2.2 0.00079337295 0.2304 AML other m 2020-09-20T19:14:38.60
IV.MURB.HHE. ML:2.2 0.00090055045 0.2944 AML other m 2020-09-20T19:14:38.38
IV.SNTG.HNN. ML:1.8 0.0002639455 0.3072 AML other m 2020-09-20T19:14:39.20
IV.SNTG.HHN. ML:1.8 0.000288 0.28 AML other m 2020-09-20T19:14:39.20
IV.SNTG.HHE. ML:1.4 0.00011065437 0.1024 AML other m 2020-09-20T19:14:39.79
IV.SNTG.HNE. ML:1.4 0.00010936626999999999 0.0896 AML other m 2020-09-20T19:14:39.78
IV.ATCC.EHN. ML:2.1 0.0005000328 0.256 AML other m 2020-09-20T19:14:39.95
IV.ATCC.EHE. ML:2.0 0.00043588314999999997 0.1792 AML other m 2020-09-20T19:14:40.02
IV.COR1.EHE. ML:1.6 0.0002074005 0.2944 AML other m 2020-09-20T19:14:40.40
IV.COR1.EHN. ML:2.1 0.0005724099 0.3456 AML other m 2020-09-20T19:14:40.64
IV.EL6.EHN. ML:1.6 0.00014366865 0.1408 AML other m 2020-09-20T19:14:42.04
IV.EL6.EHE. ML:1.5 0.0001363592 0.1408 AML other m 2020-09-20T19:14:42.09
IV.BADI.EHN. ML:1.5 0.00011486899500000001 0.1408 AML other m 2020-09-20T19:14:41.42
IV.BADI.EHE. ML:1.5 0.00010935497 0.1408 AML other m 2020-09-20T19:14:41.56
IV.PARC.HHE. ML:1.4 0.00007141807 0.3584 AML other m 2020-09-20T19:14:42.87
IV.PARC.HHN. ML:1.4 0.00007891635499999999 0.256 AML other m 2020-09-20T19:14:42.62
IV.ASSB.HHN. ML:1.6 0.00010712031999999999 0.2944 AML other m 2020-09-20T19:14:43.94
IV.ASSB.HHE. ML:1.8 0.00018964619999999998 0.32 AML other m 2020-09-20T19:14:43.33
IV.FDMO.HHN. ML:1.2 0.000037209665 0.1792 AML other m 2020-09-20T19:14:47.23
IV.CSP1.EHE. ML:1.7 0.00011407984500000001 0.3456 AML other m 2020-09-20T19:14:48.18
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