Earthquake with magnitude of ML 1.1 on date 17-08-2023 and time 14:46:15 (Italy) in region 7 km W Sassoferrato (AN)

A magnitude ML 1.1 earthquake occured in region: 7 km W Sassoferrato (AN), on

  • 17-08-2023 12:46:15 (UTC)
  • 17-08-2023 14:46:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4170, 12.7760 at 14 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 7 7285 7285
Costacciaro PG 8 1216 8501
Serra Sant'Abbondio PU 8 1027 9528
Scheggia e Pascelupo PG 9 1393 10921
Sigillo PG 10 2404 13325
Frontone PU 11 1300 14625
Genga AN 13 1797 16422
Fossato di Vico PG 14 2840 19262
Cantiano PU 14 2245 21507
Fabriano AN 14 31480 52987
Arcevia AN 16 4612 57599
Pergola PU 17 6333 63932
Gubbio PG 17 32216 96148
Cagli PU 18 8731 104879
Serra San Quirico AN 20 2850 107729
Cerreto d'Esi AN 20 3817 111546

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km NE of Perugia (166134 inhabitants)
52 Km N of Foligno (57155 inhabitants)
52 Km SW of Fano (60888 inhabitants)
56 Km S of Pesaro (94582 inhabitants)
64 Km W of Ancona (100861 inhabitants)
72 Km E of Arezzo (99543 inhabitants)
74 Km S of Rimini (147750 inhabitants)
91 Km SE of Cesena (96758 inhabitants)
96 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 2023-08-17
12:46:15
43.4167 12.7758 14 2023-08-17
12:55:56
Sala Sismica INGV-Roma 120219981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-17 12:46:15 ± 0.06
Latitude 43.4167 ± 0.0027
Longitude 12.7758 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120219981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 339
Semi-minor axis of confidence ellipse (meter) 216
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.45056
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 21
Type of magnitude ML
Reference to an origin 120219981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-17 12:55:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-08-17T12:46:25.25 0.3 undecidable manual P 136 50.0166 94 0.23 66
IV.FDMO.HHZ. 2023-08-17T12:46:24.79 0.3 undecidable manual P 149 49.1175 95 -0.1 69
IV.ATPI.EHZ. 2023-08-17T12:46:22.04 0.6 negative manual P 277 30.3474 99 0.03 48
IV.ARVD.HHZ. 2023-08-17T12:46:22.89 0.3 undecidable manual S 56 16.0728 117 0.03 74
IV.FOSV.EHZ. 2023-08-17T12:46:22.15 0.1 undecidable manual S 185 13.5753 123 -0.12 96
IV.MML1.EHZ. 2023-08-17T12:46:22.93 0.3 undecidable manual P 155 37.1295 97 -0.12 70
IV.FRON.EHZ. 2023-08-17T12:46:21.82 0.3 undecidable manual S 340 11.9769 128 -0.09 73
IV.ATCC.EHZ. 2023-08-17T12:46:21.69 0.3 undecidable manual P 203 27.9498 101 0.05 72
IV.MURB.HHZ. 2023-08-17T12:46:21.63 0.1 positive manual P 230 26.4513 102 0.2 93
IV.SNTG.HHZ. 2023-08-17T12:46:20.75 0.1 undecidable manual P 143 22.3554 106 -0.05 97
IV.PIEI.HHZ. 2023-08-17T12:46:20.82 0.3 undecidable manual P 304 23.4543 104 -0.15 71
IV.SSFR.HHZ. 2023-08-17T12:46:20.53 0.1 undecidable manual S 13 2.1978 169 -0.01 100
IV.ATFO.HHZ. 2023-08-17T12:46:20.11 0.1 negative manual P 251 17.3715 114 0.02 98
IV.FRON.EHZ. 2023-08-17T12:46:19.34 0.1 positive manual P 340 11.9769 128 -0.03 99
IV.ARVD.HHZ. 2023-08-17T12:46:19.93 0.1 undecidable manual P 56 16.0728 117 0.02 98
IV.FOSV.EHZ. 2023-08-17T12:46:19.47 0.1 undecidable manual P 185 13.5753 123 -0.1 97
IV.SSFR.HHZ. 2023-08-17T12:46:18.71 0.1 undecidable manual P 13 2.1978 169 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.4 0.00032950000000000004 1.2 AML other m 2023-08-17T12:46:20.64
IV.SSFR.HNE. ML:1.5 0.0004005 1.28 AML other m 2023-08-17T12:46:20.05
IV.SSFR.HHN. ML:1.5 0.0004185 0.28 AML other m 2023-08-17T12:46:20.64
IV.SSFR.HNN. ML:1.7 0.0007019999999999999 0.3 AML other m 2023-08-17T12:46:20.64
IV.FRON.EHE. ML:1.0 0.00009504999999999999 0.16 AML other m 2023-08-17T12:46:21.86
IV.FRON.EHN. ML:1.1 0.00011899999999999999 1.16 AML other m 2023-08-17T12:46:21.40
IV.ARVD.HHN. ML:0.6 0.00003025 1.6 AML other m 2023-08-17T12:46:22.19
IV.ARVD.HHE. ML:0.6 0.0000359 0.08 AML other m 2023-08-17T12:46:23.32
IV.ATFO.HHN. ML:0.7 0.0000412 0.22 AML other m 2023-08-17T12:46:23.62
IV.ATFO.HHE. ML:0.8 0.00005145 0.18 AML other m 2023-08-17T12:46:24.32
IV.PIEI.HHN. ML:1.0 0.00005715 0.96 AML other m 2023-08-17T12:46:24.20
IV.PIEI.HHE. ML:1.3 0.00010765 0.28 AML other m 2023-08-17T12:46:24.75
IV.SNTG.HHN. ML:0.6 0.00002305 1.1 AML other m 2023-08-17T12:46:25.43
IV.SNTG.HHE. ML:0.4 0.0000172 0.84 AML other m 2023-08-17T12:46:26.54
IV.ATCC.EHE. ML:1.4 0.0001235 0.14 AML other m 2023-08-17T12:46:26.59
IV.MURB.HHN. ML:1.9 0.00040100000000000004 0.24 AML other m 2023-08-17T12:46:26.55
IV.ATCC.EHN. ML:1.3 0.00010435 0.4 AML other m 2023-08-17T12:46:26.48
IV.MURB.HHE. ML:1.9 0.0003725 0.22 AML other m 2023-08-17T12:46:26.59
IV.ATPI.EHN. ML:1.0 0.00004315 0.46 AML other m 2023-08-17T12:46:27.05
IV.ATPI.EHE. ML:0.9 0.00003455 1.66 AML other m 2023-08-17T12:46:27.15
IV.ASSB.HHE. ML:0.7 0.00001651 0.38 AML other m 2023-08-17T12:46:30.21
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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