Earthquake with magnitude of ML 1.2 on date 25-04-2023 and time 08:13:18 (UTC) in region 2 km W Fiastra (MC)

A magnitude ML 1.2 earthquake occured in region: 2 km W Fiastra (MC), on

  • 25-04-2023 08:13:18 (UTC)
  • 25-04-2023 10:13:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0360, 13.1320 at 8 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
Fiastra MC 2 559 559
Fiordimonte MC 3 202 761
Acquacanina MC 4 121 882
Pievebovigliana MC 5 866 1748
Pieve Torina MC 7 1458 3206
Muccia MC 9 915 4121
Bolognola MC 9 142 4263
Ussita MC 10 444 4707
Monte Cavallo MC 12 145 4852
Visso MC 12 1107 5959
Camerino MC 12 6974 12933
Cessapalombo MC 13 512 13445
Caldarola MC 14 1823 15268
Sarnano MC 14 3264 18532
Serravalle di Chienti MC 15 1070 19602
Camporotondo di Fiastrone MC 15 563 20165
Castelsantangelo sul Nera MC 16 281 20446
Serrapetrona MC 16 966 21412
Belforte del Chienti MC 17 1886 23298
San Ginesio MC 17 3498 26796
Gualdo MC 17 815 27611
Preci PG 19 724 28335
Sefro MC 19 422 28757
Amandola FM 19 3629 32386
Montefortino FM 20 1178 33564
Pioraco MC 20 1134 34698

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
61 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
66 Km NE of Terni (111501 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
99 Km S of Pesaro (94582 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 1.2 2023-04-25
08:13:18
43.0363 13.1322 8 2023-04-25
08:29:41
Sala Sismica INGV-Roma 116726821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 08:13:18 ± 0.1
Latitude 43.0363 ± 0.0027
Longitude 13.1322 ± 0.0037
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116726821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 287
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 116726821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-25 08:29:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2023-04-25T08:13:33.84 3.0 undecidable manual S -0.71 0
IV.MF5.EHZ. 2023-04-25T08:13:28.49 0.6 undecidable manual S 101 27.1506 106 0.58 42
IV.NRCA.HHZ. 2023-04-25T08:13:26.20 0.3 undecidable manual S 184 22.5552 109 -0.2 70
IV.CESI.HHZ. 2023-04-25T08:13:25.36 0.3 undecidable manual S 259 18.7701 112 0.18 71
7F.SIB3.EHZ. 2023-04-25T08:13:25.75 0.3 undecidable manual S 148 21.0678 110 -0.18 71
IV.MML1.EHZ. 2023-04-25T08:13:24.12 0.3 undecidable manual S 303 15.5733 116 -0.04 74
IV.SNTG.HHZ. 2023-04-25T08:13:24.26 1.0 undecidable manual P 327 28.749 105 0.16 23
IV.MF5.EHZ. 2023-04-25T08:13:23.95 0.3 undecidable manual P 101 27.1506 106 0.17 70
7F.SIB3.EHZ. 2023-04-25T08:13:22.49 0.3 undecidable manual P 148 21.0678 110 -0.14 72
IV.CESI.HHZ. 2023-04-25T08:13:22.21 0.1 undecidable manual P 259 18.7701 112 0.01 98
7F.SIB2.EHZ. 2023-04-25T08:13:22.54 0.6 undecidable manual P 139 21.2676 110 -0.14 48
IV.NRCA.HHZ. 2023-04-25T08:13:22.72 0.3 undecidable manual P 184 22.5552 109 -0.19 71
IV.PF6.EHZ. 2023-04-25T08:13:22.90 0.3 undecidable manual S 24 12.2766 122 -0.28 71
IV.GUMA.HHZ. 2023-04-25T08:13:22.04 0.1 positive manual P 80 16.6722 115 0.22 95
IV.CSP1.EHZ. 2023-04-25T08:13:22.09 0.3 undecidable manual S 44 8.4804 132 -0.03 75
IT.MTCL.HGZ. 2023-04-25T08:13:21.05 0.6 undecidable manual P 246 11.7771 123 0.1 49
IV.FEMA.HNZ. 2023-04-25T08:13:21.05 0.6 undecidable manual P 219 10.5783 126 0.29 47
IV.MML1.EHZ. 2023-04-25T08:13:21.51 0.1 undecidable manual P 303 15.5733 116 -0.1 97
IV.FDMO.HHZ. 2023-04-25T08:13:21.15 0.1 undecidable manual S 270 3.5964 155 0.06 100
IV.PF6.EHZ. 2023-04-25T08:13:20.85 0.3 undecidable manual P 24 12.2766 122 -0.2 72
IV.CSP1.EHZ. 2023-04-25T08:13:20.40 0.1 undecidable manual P 44 8.4804 132 -0.03 100
IV.FDMO.HHZ. 2023-04-25T08:13:19.95 0.1 undecidable manual P 270 3.5964 155 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:1.5 0.0005925 0.42 AML other m 2023-04-25T08:13:22.34
IV.CSP1.EHN. ML:1.5 0.000521 0.64 AML other m 2023-04-25T08:13:22.52
IV.MML1.EHN. ML:1.0 0.000112 0.34 AML other m 2023-04-25T08:13:24.28
IV.MML1.EHE. ML:0.8 0.00007105 0.18 AML other m 2023-04-25T08:13:24.97
IV.GUMA.HHE. ML:1.4 0.0002615 0.2 AML other m 2023-04-25T08:13:25.13
IV.GUMA.HHN. ML:1.0 0.00010220000000000002 0.62 AML other m 2023-04-25T08:13:26.36
IV.NRCA.HHN. ML:0.9 0.00006055000000000001 0.86 AML other m 2023-04-25T08:13:27.50
IV.NRCA.HHE. ML:1.1 0.00008715 0.1 AML other m 2023-04-25T08:13:28.72
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