Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 01-07-2021 and time 04:02:11 (Italy) in region 3 km SE Serra Sant'Abbondio (PU)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Serra Sant'Abbondio (PU), on

  • 01-07-2021 02:02:11 (UTC)
  • 01-07-2021 04:02:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4750, 12.7950 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 1027 1027
Frontone PU 6 1300 2327
Sassoferrato AN 7 7285 9612
Pergola PU 11 6333 15945
Arcevia AN 12 4612 20557
Genga AN 12 1797 22354
Scheggia e Pascelupo PG 13 1393 23747
Cantiano PU 13 2245 25992
Cagli PU 14 8731 34723
Costacciaro PG 14 1216 35939
Sigillo PG 16 2404 38343
Fabriano AN 18 31480 69823
Serra San Quirico AN 18 2850 72673
Acqualagna PU 19 4393 77066
San Lorenzo in Campo PU 19 3414 80480
Fratte Rosa PU 20 966 81446
Mergo AN 20 1037 82483

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SW of Fano (60888 inhabitants)
50 Km S of Pesaro (94582 inhabitants)
52 Km NE of Perugia (166134 inhabitants)
58 Km N of Foligno (57155 inhabitants)
61 Km W of Ancona (100861 inhabitants)
68 Km S of Rimini (147750 inhabitants)
74 Km E of Arezzo (99543 inhabitants)
86 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 0.9 2021-07-01
02:02:11		 43.4747 12.7947 15 2021-07-01
02:09:57		 Sala Sismica INGV-Roma 92088191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-01 02:02:11 ± 0.19
Latitude 43.4747 ± 0.0063
Longitude 12.7947 ± 0.0099
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 92088191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 804
Semi-minor axis of confidence ellipse (meter) 491
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.43887
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 92088191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-01 02:09:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PARC.HHZ. 2021-07-01T02:02:27.55 0.6 undecidable manual S 294 48.7179 96 0.31 44
IV.PARC.HHZ. 2021-07-01T02:02:21.10 0.1 undecidable manual P 294 48.7179 96 0.41 87
IV.MPAG.EHE. 2021-07-01T02:02:19.05 0.6 undecidable manual S 351 17.3715 117 -0.07 49
IV.FOSV.EHZ. 2021-07-01T02:02:19.76 0.6 undecidable manual S 188 20.1687 112 -0.02 50
IV.ARVD.HHZ. 2021-07-01T02:02:18.27 0.6 undecidable manual S 78 12.0768 131 0.32 47
IV.ATSC.EHZ. 2021-07-01T02:02:17.40 0.3 undecidable manual S 237 10.3785 136 -0.21 73
IV.COR1.HNE. 2021-07-01T02:02:17.02 1.0 undecidable manual P 43 24.0537 107 0.07 25
IV.FRON.EHZ. 2021-07-01T02:02:16.88 0.3 undecidable manual S 311 7.2927 148 -0.23 73
IV.SSFR.HHZ. 2021-07-01T02:02:16.83 0.3 undecidable manual S 193 4.3956 160 0.07 75
IV.FOSV.EHZ. 2021-07-01T02:02:16.23 0.1 undecidable manual P 188 20.1687 112 -0.15 96
IV.ATSC.EHZ. 2021-07-01T02:02:15.03 0.1 undecidable manual P 237 10.3785 136 -0.1 99
IV.ARVD.HHZ. 2021-07-01T02:02:15.50 0.1 undecidable manual P 78 12.0768 131 0.18 98
IV.MPAG.EHE. 2021-07-01T02:02:15.46 0.3 undecidable manual P 351 17.3715 117 -0.54 66
IV.SSFR.HHZ. 2021-07-01T02:02:14.75 0.1 undecidable manual P 193 4.3956 160 0.11 100
IV.FRON.EHZ. 2021-07-01T02:02:14.81 0.6 negative manual P 311 7.2927 148 -0.03 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:1.0 0.00010793607499999999 0.0992 AML other m 2021-07-01T02:02:16.92
IV.SSFR.HHE. ML:0.7 0.00006140711 0.1008 AML other m 2021-07-01T02:02:17.57
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