Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 09-01-2021 and time 10:50:50 (UTC) in region 6 km S Serra Sant'Abbondio (PU)

A magnitude ML 0.7 earthquake occured in region: 6 km S Serra Sant'Abbondio (PU), on

  • 09-01-2021 10:50:50 (UTC)
  • 09-01-2021 11:50:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4370, 12.7770 at 15 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 6 1027 1027
Sassoferrato AN 7 7285 8312
Frontone PU 9 1300 9612
Scheggia e Pascelupo PG 10 1393 11005
Costacciaro PG 10 1216 12221
Sigillo PG 12 2404 14625
Cantiano PU 13 2245 16870
Genga AN 13 1797 18667
Pergola PU 15 6333 25000
Arcevia AN 15 4612 29612
Fabriano AN 15 31480 61092
Fossato di Vico PG 16 2840 63932
Cagli PU 16 8731 72663
Gubbio PG 18 32216 104879
Serra San Quirico AN 19 2850 107729

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Perugia (166134 inhabitants)
49 Km SW of Fano (60888 inhabitants)
54 Km S of Pesaro (94582 inhabitants)
54 Km N of Foligno (57155 inhabitants)
63 Km W of Ancona (100861 inhabitants)
72 Km S of Rimini (147750 inhabitants)
72 Km E of Arezzo (99543 inhabitants)
89 Km SE of Cesena (96758 inhabitants)
98 Km N of Terni (111501 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 0.7 2021-01-09
10:50:50		 43.4373 12.777 15 2021-01-09
11:09:41		 Sala Sismica INGV-Roma 86119841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-09 10:50:50 ± 0.11
Latitude 43.4373 ± 0.0036
Longitude 12.7770 ± 0.0074
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86119841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 559
Semi-minor axis of confidence ellipse (meter) 198
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21764
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 86119841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-09 11:09:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2021-01-09T10:51:19.24 3.0 undecidable manual S 0 0
IV.SNTG.HHZ. 2021-01-09T10:50:59.57 0.6 undecidable manual S 147 24.1536 108 0.23 47
IV.PIEI.HHZ. 2021-01-09T10:50:58.91 0.6 undecidable manual S 299 22.3554 110 0.04 49
IV.MPAG.HNZ. 2021-01-09T10:50:58.99 0.6 undecidable manual S 356 21.3675 112 0.36 46
IV.FOSV.EHZ. 2021-01-09T10:50:57.05 0.6 undecidable manual S 185 15.873 122 -0.27 48
IV.ARVD.HHZ. 2021-01-09T10:50:57.02 0.6 undecidable manual S 63 14.874 125 -0.08 49
IV.FRON.EHZ. 2021-01-09T10:50:56.07 0.6 undecidable manual S 335 9.7791 139 -0.02 50
IV.SSFR.HNZ. 2021-01-09T10:50:55.00 0.6 undecidable manual S 106 0.3996 178 -0.16 49
IV.PIEI.HHZ. 2021-01-09T10:50:55.23 0.1 undecidable manual P 299 22.3554 110 0 99
IV.ATSC.EHZ. 2021-01-09T10:50:55.64 0.6 undecidable manual S 259 7.4814 148 -0.08 50
IV.SNTG.HHZ. 2021-01-09T10:50:55.45 0.1 undecidable manual P 147 24.1536 108 -0.05 99
IV.FOSV.EHZ. 2021-01-09T10:50:54.30 0.6 undecidable manual P 185 15.873 122 -0.03 50
IV.ARVD.HHZ. 2021-01-09T10:50:54.34 0.3 positive manual P 63 14.874 125 0.14 74
IV.MPAG.HNZ. 2021-01-09T10:50:54.63 0.1 undecidable manual P 356 21.3675 112 -0.46 91
IV.ATSC.EHZ. 2021-01-09T10:50:53.52 0.1 undecidable manual P 259 7.4814 148 0.11 100
IV.SSFR.HNZ. 2021-01-09T10:50:53.29 0.1 undecidable manual P 106 0.3996 178 0.2 100
IV.FRON.EHZ. 2021-01-09T10:50:53.85 0.6 undecidable manual P 335 9.7791 139 0.23 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.7 0.000051566335000000004 0.16 AML other m 2021-01-09T10:50:56.27
IV.FRON.EHN. ML:0.7 0.000045677255 0.16 AML other m 2021-01-09T10:50:56.30
IV.FOSV.EHE. ML:0.9 0.00006046686499999999 0.0768 AML other m 2021-01-09T10:50:57.22
IV.FOSV.EHN. ML:0.8 0.0000439463 0.0832 AML other m 2021-01-09T10:50:57.20
IV.PIEI.HHE. ML:0.6 0.000024849575000000002 0.0832 AML other m 2021-01-09T10:50:59.31
IV.PIEI.HHN. ML:0.2 0.000010791749499999999 0.1216 AML other m 2021-01-09T10:50:59.14
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