Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 07-08-2020 and time 06:40:37 (UTC) in region 2 km E Serra Sant'Abbondio (PU)

A magnitude ML 0.3 earthquake occured in region: 2 km E Serra Sant'Abbondio (PU), on

  • 07-08-2020 06:40:37 (UTC)
  • 07-08-2020 08:40:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4980, 12.7950 at 6 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
Serra Sant'Abbondio PU 2 1027 1027
Frontone PU 5 1300 2327
Pergola PU 8 6333 8660
Sassoferrato AN 9 7285 15945
Arcevia AN 12 4612 20557
Cagli PU 13 8731 29288
Genga AN 14 1797 31085
Cantiano PU 14 2245 33330
Scheggia e Pascelupo PG 15 1393 34723
Acqualagna PU 17 4393 39116
Costacciaro PG 17 1216 40332
San Lorenzo in Campo PU 17 3414 43746
Fratte Rosa PU 17 966 44712
Serra San Quirico AN 19 2850 47562
Sigillo PG 19 2404 49966
Castelleone di Suasa AN 19 1676 51642
Mergo AN 20 1037 52679
Fabriano AN 20 31480 84159

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km SW of Fano (60888 inhabitants)
47 Km S of Pesaro (94582 inhabitants)
55 Km NE of Perugia (166134 inhabitants)
60 Km W of Ancona (100861 inhabitants)
61 Km N of Foligno (57155 inhabitants)
65 Km S of Rimini (147750 inhabitants)
74 Km E of Arezzo (99543 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
Reviewed
Rev100 		ML 0.3 2020-08-07
06:40:37		 43.4983 12.7953 7 2020-08-07
06:50:57		 Sala Sismica INGV-Roma 81725891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-07 06:40:37 ± 0.19
Latitude 43.4983 ± 0.0045
Longitude 12.7953 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81725891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 484
Semi-minor axis of confidence ellipse (meter) 210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 21
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.05396
Epicentral distance of station farthest from the epicenter (degree) 0.19245
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 81725891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-07 06:50:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2020-08-07T06:40:45.40 0.6 undecidable manual S 281 21.3675 107 0.29 48
IV.ARVD.HHZ. 2020-08-07T06:40:42.20 0.3 undecidable manual S 90 11.7771 119 0.16 74
IV.MPAG.EHZ. 2020-08-07T06:40:42.90 0.6 undecidable manual S 349 14.7741 114 -0.08 50
IV.PIEI.HHZ. 2020-08-07T06:40:41.58 0.6 positive manual P 281 21.3675 107 -0.26 48
IV.FRON.EHZ. 2020-08-07T06:40:40.50 0.6 undecidable manual S 291 5.994 137 0.07 51
IV.SSFR.HNZ. 2020-08-07T06:40:40.70 0.3 undecidable manual S 189 6.993 133 0.03 77
IV.ATSC.EHZ. 2020-08-07T06:40:40.32 0.3 undecidable manual P 227 12.0768 118 0.21 74
IV.MPAG.EHZ. 2020-08-07T06:40:40.80 0.1 undecidable manual P 349 14.7741 114 0.19 98
IV.SSFR.HNZ. 2020-08-07T06:40:39.19 0.3 undecidable manual P 189 6.993 133 -0.09 76
IV.ARVD.HHZ. 2020-08-07T06:40:39.94 0.1 undecidable manual P 90 11.7771 119 -0.13 100
IV.FRON.EHZ. 2020-08-07T06:40:38.85 0.1 undecidable manual P 291 5.994 137 -0.29 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.0 0.000065380935 0.5024 AML other m 2020-08-07T06:40:42.00
IV.FRON.EHN. ML:0.0 0.0001118872 0.48 AML other m 2020-08-07T06:40:42.82
IV.ARVD.HHE. ML:0.0 0.00003179167 1.7184 AML other m 2020-08-07T06:40:43.77
IV.ARVD.HHN. ML:0.0 0.000024939194999999996 1.1584 AML other m 2020-08-07T06:40:43.66
IV.PIEI.HHE. ML:0.4 0.000018768884999999998 2.4 AML other m 2020-08-07T06:40:47.62
IV.PIEI.HHN. ML:0.3 0.000013609455 1.9584 AML other m 2020-08-07T06:40:47.35
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