Earthquake with magnitude of ML 1.1 on date 07-10-2023 and time 20:21:13 (UTC) in region 1 km NE Casteldelci (RN)

A magnitude ML 1.1 earthquake occured in region: 1 km NE Casteldelci (RN), on

  • 07-10-2023 20:21:13 (UTC)
  • 07-10-2023 22:21:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8000, 12.1590 at 9 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
Casteldelci RN 1 407 407
Sant'Agata Feltria RN 8 2151 2558
Pennabilli RN 9 2869 5427
Badia Tedalda AR 11 1087 6514
Verghereto FC 12 1907 8421
Sarsina FC 13 3446 11867
Carpegna PU 14 1674 13541
Maiolo RN 15 848 14389
Sestino AR 15 1355 15744
Novafeltria RN 15 7164 22908
Talamello RN 16 1104 24012
Bagno di Romagna FC 16 6026 30038
Montecopiolo PU 17 1128 31166
Pieve Santo Stefano AR 17 3183 34349
Pietrarubbia PU 18 660 35009
Mercato Saraceno FC 18 6886 41895
Frontino PU 18 293 42188
San Leo RN 18 2972 45160
Borgo Pace PU 19 606 45766
Belforte all'Isauro PU 20 769 46535

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km S of Cesena (96758 inhabitants)
43 Km NE of Arezzo (99543 inhabitants)
44 Km SW of Rimini (147750 inhabitants)
48 Km S of Forlì (117913 inhabitants)
58 Km SE of Faenza (58541 inhabitants)
62 Km W of Pesaro (94582 inhabitants)
69 Km S of Ravenna (159116 inhabitants)
69 Km W of Fano (60888 inhabitants)
71 Km SE of Imola (69797 inhabitants)
73 Km E of Firenze (382808 inhabitants)
79 Km E of Scandicci (50609 inhabitants)
79 Km N of Perugia (166134 inhabitants)
85 Km NE of Siena (53903 inhabitants)
86 Km E of Prato (191150 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 2023-10-07
20:21:13
43.7998 12.1593 9 2023-10-07
20:45:04
Sala Sismica INGV-Roma 121869171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-07 20:21:13 ± 0.68
Latitude 43.7998 ± 0.0207
Longitude 12.1593 ± 0.0461
Depth (km) 9 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121869171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3316
Semi-minor axis of confidence ellipse (meter) 1705
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 3320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 290
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.61
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 121869171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-07 20:45:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2023-10-07T20:21:31.51 3.0 undecidable manual S -2.42 0
IV.MPAG.EHZ. 2023-10-07T20:21:30.16 0.3 undecidable manual S 111 51.7038 50 -0.08 67
IV.ATVO.HHZ. 2023-10-07T20:21:29.92 0.3 undecidable manual S 157 50.4162 50 0.03 64
IV.NARO.HHZ. 2023-10-07T20:21:26.27 0.1 undecidable manual S 122 39.7269 50 -0.78 92
IV.PIEI.HHZ. 2023-10-07T20:21:26.66 0.3 undecidable manual S 134 42.0246 50 -1 65
IV.BADI.EHZ. 2023-10-07T20:21:25.25 3.0 undecidable manual S 0.38 0
IV.MPAG.EHZ. 2023-10-07T20:21:22.74 0.1 undecidable manual P 111 51.7038 50 -0.44 97
IV.ATVO.HHZ. 2023-10-07T20:21:22.92 0.1 undecidable manual P 157 50.4162 50 -0.07 89
IV.NARO.HHZ. 2023-10-07T20:21:20.58 0.1 undecidable manual P 122 39.7269 50 -0.77 92
IV.PIEI.HHZ. 2023-10-07T20:21:20.91 0.6 undecidable manual P 134 42.0246 50 -0.79 46
IV.CPGN.EHZ. 2023-10-07T20:21:19.76 0.3 undecidable manual S 89 12.876 125 0.71 77
IV.PARC.HHZ. 2023-10-07T20:21:17.63 1.0 undecidable manual P 159 17.9709 117 0.04 26
IV.CPGN.EHZ. 2023-10-07T20:21:17.11 0.1 positive manual P 89 12.876 125 0.38 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CPGN.EHE. ML:1.4 0.00031399999999999993 0.3 AML other m 2023-10-07T20:21:20.63
IV.CPGN.EHN. ML:1.5 0.00033650000000000005 0.3 AML other m 2023-10-07T20:21:21.04
IV.PARC.HHN. ML:0.9 0.00007205 0.26 AML other m 2023-10-07T20:21:23.30
IV.PARC.HHE. ML:0.9 0.0000655 1.58 AML other m 2023-10-07T20:21:24.96
IV.NARO.HHN. ML:1.2 0.0000594 0.16 AML other m 2023-10-07T20:21:26.87
IV.NARO.HHE. ML:0.9 0.0000314 1.28 AML other m 2023-10-07T20:21:27.73
IV.PIEI.HHN. ML:0.8 0.000022 1.16 AML other m 2023-10-07T20:21:27.03
IV.PIEI.HHE. ML:1.2 0.0000497 0.7 AML other m 2023-10-07T20:21:27.54
IV.ATVO.HHE. ML:1.3 0.0000539 0.46 AML other m 2023-10-07T20:21:30.35
IV.ATVO.HHN. ML:1.1 0.0000324 0.5 AML other m 2023-10-07T20:21:30.61
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