Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 29-07-2021 and time 19:02:48 (UTC) in region 5 km S Serra Sant'Abbondio (PU)

A magnitude ML 0.3 earthquake occured in region: 5 km S Serra Sant'Abbondio (PU), on

  • 29-07-2021 19:02:48 (UTC)
  • 29-07-2021 21:02:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4450, 12.7640 at 12 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 5 1027 1027
Sassoferrato AN 8 7285 8312
Frontone PU 8 1300 9612
Scheggia e Pascelupo PG 9 1393 11005
Costacciaro PG 10 1216 12221
Cantiano PU 11 2245 14466
Sigillo PG 13 2404 16870
Genga AN 14 1797 18667
Pergola PU 14 6333 25000
Cagli PU 15 8731 33731
Arcevia AN 16 4612 38343
Fabriano AN 17 31480 69823
Fossato di Vico PG 17 2840 72663
Gubbio PG 18 32216 104879

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Perugia (166134 inhabitants)
49 Km SW of Fano (60888 inhabitants)
53 Km S of Pesaro (94582 inhabitants)
55 Km N of Foligno (57155 inhabitants)
64 Km W of Ancona (100861 inhabitants)
70 Km S of Rimini (147750 inhabitants)
71 Km E of Arezzo (99543 inhabitants)
88 Km SE of Cesena (96758 inhabitants)
99 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 0.3 2021-07-29
19:02:48		 43.4452 12.764 12 2021-07-29
19:09:17		 Sala Sismica INGV-Roma 93367181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-29 19:02:48 ± 0.07
Latitude 43.4452 ± 0.0027
Longitude 12.7640 ± 0.0050
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93367181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 368
Semi-minor axis of confidence ellipse (meter) 121
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.27519
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 93367181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-29 19:09:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-07-29T19:02:59.86 0.3 undecidable manual S 199 30.5472 93 0.35 68
IV.NARO.HHZ. 2021-07-29T19:02:57.67 0.3 undecidable manual S 321 23.5542 96 0.01 74
IV.MPAG.EHZ. 2021-07-29T19:02:56.87 0.3 undecidable manual S 359 20.4684 98 0.04 74
IV.PIEI.HHZ. 2021-07-29T19:02:56.88 0.3 undecidable manual S 299 20.9679 97 -0.09 73
IV.ATCC.EHZ. 2021-07-29T19:02:55.08 0.1 undecidable manual P 199 30.5472 93 0.05 97
IV.FOSV.EHZ. 2021-07-29T19:02:55.62 0.3 undecidable manual S 181 16.6722 104 -0.22 72
IV.ARVD.HHZ. 2021-07-29T19:02:55.49 0.3 undecidable manual S 68 15.4734 107 -0.03 74
IV.FRON.EHZ. 2021-07-29T19:02:54.02 0.3 undecidable manual S 339 8.5803 133 0.08 76
IV.PIEI.HHZ. 2021-07-29T19:02:53.42 0.1 undecidable manual P 299 20.9679 97 -0.14 96
IV.MPAG.EHZ. 2021-07-29T19:02:53.42 0.1 undecidable manual P 359 20.4684 98 -0.05 98
IV.NARO.HHZ. 2021-07-29T19:02:53.82 0.1 undecidable manual P 321 23.5542 96 -0.14 96
IV.ARVD.HHZ. 2021-07-29T19:02:52.85 0.1 undecidable manual P 68 15.4734 107 0.13 98
IV.FOSV.EHZ. 2021-07-29T19:02:52.83 0.1 undecidable manual P 181 16.6722 104 -0.08 98
IV.FRON.EHZ. 2021-07-29T19:02:51.91 0.1 undecidable manual P 339 8.5803 133 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHN. ML:0.2 0.000020549999999999998 0.78 AML other m 2021-07-29T19:02:54.76
IV.FRON.EHE. ML:0.2 0.00001835 1.18 AML other m 2021-07-29T19:02:54.24
IV.FOSV.EHN. ML:0.3 0.00001655 0.1 AML other m 2021-07-29T19:02:55.87
IV.FOSV.EHE. ML:0.4 0.0000212 0.18 AML other m 2021-07-29T19:02:55.86
IV.PIEI.HHN. ML:0.2 0.000010925000000000001 1.8 AML other m 2021-07-29T19:02:57.08
IV.PIEI.HHE. ML:0.4 0.0000165 0.1 AML other m 2021-07-29T19:02:57.30
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