Earthquake with magnitude of ML 1.1 on date 06-04-2023 and time 07:10:20 (Italy) in region 2 km S Sassoferrato (AN)

A magnitude ML 1.1 earthquake occured in region: 2 km S Sassoferrato (AN), on

  • 06-04-2023 05:10:20 (UTC)
  • 06-04-2023 07:10:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4230, 12.8620 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sassoferrato AN 2 7285 7285
Genga AN 6 1797 9082
Fabriano AN 10 31480 40562
Serra Sant'Abbondio PU 11 1027 41589
Arcevia AN 11 4612 46201
Serra San Quirico AN 13 2850 49051
Costacciaro PG 14 1216 50267
Sigillo PG 14 2404 52671
Frontone PU 14 1300 53971
Cerreto d'Esi AN 15 3817 57788
Mergo AN 15 1037 58825
Scheggia e Pascelupo PG 16 1393 60218
Pergola PU 16 6333 66551
Fossato di Vico PG 16 2840 69391
Rosora AN 18 1985 71376
Poggio San Vicino MC 18 246 71622
Castelplanio AN 20 3540 75162
Serra de' Conti AN 20 3746 78908
Cantiano PU 20 2245 81153

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km S of Fano (60888 inhabitants)
52 Km NE of Perugia (166134 inhabitants)
53 Km N of Foligno (57155 inhabitants)
54 Km S of Pesaro (94582 inhabitants)
57 Km W of Ancona (100861 inhabitants)
75 Km SE of Rimini (147750 inhabitants)
79 Km E of Arezzo (99543 inhabitants)
94 Km SE of Cesena (96758 inhabitants)
97 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 1.1 2023-04-06
05:10:20
43.4232 12.862 15 2023-04-06
05:30:08
Sala Sismica INGV-Roma 116104961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-06 05:10:20 ± 0.04
Latitude 43.4232 ± 0.0027
Longitude 12.8620 ± 0.0025
Depth (km) 15 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116104961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 71
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.26260
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:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 116104961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-06 05:30:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2023-04-06T05:10:30.54 0.6 undecidable manual S 295 29.1486 103 0.07 48
IV.SNTG.HHZ. 2023-04-06T05:10:28.07 0.6 undecidable manual S 161 19.6692 113 0.01 49
IV.EL6.EHZ. 2023-04-06T05:10:28.66 0.6 undecidable manual S 118 21.9669 110 0.04 49
IV.FOSV.EHZ. 2023-04-06T05:10:27.16 0.6 undecidable manual S 210 16.3725 120 -0.11 48
IV.PIEI.HHZ. 2023-04-06T05:10:26.02 0.1 undecidable manual P 295 29.1486 103 -0.08 96
IV.FRON.EHZ. 2023-04-06T05:10:26.99 0.1 undecidable manual S 314 15.1737 123 -0.01 99
IV.EL6.EHZ. 2023-04-06T05:10:25.00 0.1 undecidable manual P 118 21.9669 110 -0.03 98
IV.SSFR.HHZ. 2023-04-06T05:10:25.36 0.6 undecidable manual S 283 6.5934 151 -0.05 50
IV.FRON.EHZ. 2023-04-06T05:10:24.09 0.1 undecidable manual P 314 15.1737 123 0 100
IV.FOSV.EHZ. 2023-04-06T05:10:24.37 0.1 undecidable manual P 210 16.3725 120 0.12 97
IV.SNTG.HHZ. 2023-04-06T05:10:24.68 0.1 undecidable manual P 161 19.6692 113 -0.03 98
IV.SSFR.HHZ. 2023-04-06T05:10:23.22 0.1 undecidable manual P 283 6.5934 151 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.0 0.0001088 0.14 AML other m 2023-04-06T05:10:25.54
IV.SSFR.HHN. ML:0.9 0.000086776765 0.1024 AML other m 2023-04-06T05:10:25.42
IV.SSFR.HNE. ML:1.3 0.0002113627 0.048 AML other m 2023-04-06T05:10:25.57
IV.SSFR.HNN. ML:1.3 0.00021717485 1.0592 AML other m 2023-04-06T05:10:31.24
IV.FRON.EHE. ML:0.7 0.00003841658 1.5616 AML other m 2023-04-06T05:10:32.71
IV.FRON.EHN. ML:0.6 0.00003566401 2.6816 AML other m 2023-04-06T05:10:33.16
IV.FOSV.HNE. ML:1.2 0.00011410757499999999 1.5072 AML other m 2023-04-06T05:10:29.21
IV.FOSV.HNN. ML:1.3 0.00015517855 2.272 AML other m 2023-04-06T05:10:32.88
IV.FOSV.EHE. ML:0.6 0.000029678949999999998 1.9392 AML other m 2023-04-06T05:10:33.54
IV.FOSV.EHN. ML:0.8 0.000051775775 1.9392 AML other m 2023-04-06T05:10:33.72
IV.SNTG.HNE. ML:1.3 0.0001399805 0.9504 AML other m 2023-04-06T05:10:25.25
IV.EL6.EHE. ML:1.1 0.00007927567 2.9792 AML other m 2023-04-06T05:10:24.68
IV.EL6.EHN. ML:1.3 0.000110641875 3.4432 AML other m 2023-04-06T05:10:26.16
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