Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 29-04-2023 and time 09:00:27 (UTC) in region 6 km SW Serravalle di Chienti (MC)

A magnitude ML 1.0 earthquake occured in region: 6 km SW Serravalle di Chienti (MC), on

  • 29-04-2023 09:00:27 (UTC)
  • 29-04-2023 11:00:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0440, 12.8840 at 10 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
Serravalle di Chienti MC 6 1070 1070
Valtopina PG 11 1398 2468
Nocera Umbra PG 11 5839 8307
Monte Cavallo MC 11 145 8452
Sefro MC 13 422 8874
Pieve Torina MC 14 1458 10332
Muccia MC 14 915 11247
Pievebovigliana MC 17 866 12113
Fiuminata MC 17 1402 13515
Fiordimonte MC 17 202 13717
Pioraco MC 17 1134 14851
Sellano PG 18 1079 15930
Foligno PG 18 57155 73085
Camerino MC 18 6974 80059
Spello PG 18 8645 88704

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
79 Km NW of Teramo (54892 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
94 Km SE of Arezzo (99543 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
96 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 1.0 2023-04-29
09:00:27		 43.0443 12.8845 10 2023-04-29
09:07:59		 Sala Sismica INGV-Roma 116867051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-29 09:00:27 ± 0.13
Latitude 43.0443 ± 0.0090
Longitude 12.8845 ± 0.0062
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116867051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 927
Semi-minor axis of confidence ellipse (meter) 464
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26980
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 116867051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-29 09:07:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.AGOR.HHZ. 2023-04-29T09:02:05.57 3.0 undecidable manual Sg 7.26 0
GU.MGRO.HHZ. 2023-04-29T09:02:00.05 3.0 undecidable manual Sn -0.82 0
IV.CTI.HHZ. 2023-04-29T09:01:57.53 3.0 undecidable manual Sg 4.1 0
AC.VLO.HHZ. 2023-04-29T09:01:48.98 3.0 positive manual Pn 0.79 0
IV.SPS2.HHZ. 2023-04-29T09:01:39.20 3.0 positive manual Pg 7.4 0
IV.ORI.HHZ. 2023-04-29T09:01:22.59 3.0 negative manual Pn -2.31 0
NI.VINO.HHZ. 2023-04-29T09:01:21.92 3.0 positive manual Pg 6.19 0
IV.MRLC.HHZ. 2023-04-29T09:01:18.10 3.0 positive manual Pg 7.18 0
IV.BDI.HHZ. 2023-04-29T09:01:13.26 3.0 undecidable manual Sn -4.59 0
IV.AGLI.HHZ. 2023-04-29T09:01:09.73 3.0 undecidable manual Pg 1.02 0
IV.NRCA.HHZ. 2023-04-29T09:00:37.89 0.3 undecidable manual S 141 29.9478 50 -0.22 71
IV.EL6.EHZ. 2023-04-29T09:00:34.77 3.0 positive manual P -1.1 0
IV.ARRO.EHZ. 2023-04-29T09:00:34.82 3.0 undecidable manual P 0
IV.ASSB.HHZ. 2023-04-29T09:00:34.23 0.3 undecidable manual S 269 18.2706 118 -0.41 70
IV.CSP1.EHZ. 2023-04-29T09:00:33.00 3.0 positive manual P -1.66 0
IV.FDMO.HHZ. 2023-04-29T09:00:33.79 0.3 undecidable manual S 93 16.4724 121 -0.3 72
IV.NRCA.HHZ. 2023-04-29T09:00:33.72 0.1 undecidable manual P 141 29.9478 50 0.13 97
IV.MML1.EHZ. 2023-04-29T09:00:32.28 0.3 undecidable manual S 43 10.4784 134 -0.14 75
IV.FDMO.HHZ. 2023-04-29T09:00:31.36 0.1 undecidable manual P 93 16.4724 121 0.09 100
IV.CESI.HHZ. 2023-04-29T09:00:31.28 0.3 undecidable manual S 160 4.6953 155 0.05 77
IV.ASSB.HHZ. 2023-04-29T09:00:31.77 0.1 undecidable manual P 269 18.2706 118 0.18 98
IV.MML1.EHZ. 2023-04-29T09:00:30.47 0.1 undecidable manual P 43 10.4784 134 0.17 99
IV.CESI.HHZ. 2023-04-29T09:00:29.97 0.6 undecidable manual P 160 4.6953 155 0.35 48
IV.SRES.HHZ. 2023-04-29T09:00:28.75 3.0 undecidable manual P -5.36 0
IV.ATCC.EHZ. 2023-04-29T09:00:27.59 0.1 undecidable manual P 25.2525 -5.26 0
IV.MOMA.HHZ. 2023-04-29T09:00:26.99 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.0 0.00017099999999999998 0.32 AML other m 2023-04-29T09:00:31.67
IV.CESI.HHE. ML:1.0 0.000168 0.44 AML other m 2023-04-29T09:00:31.52
IV.MML1.EHN. ML:1.2 0.00017749999999999998 0.18 AML other m 2023-04-29T09:00:32.46
IV.MML1.EHE. ML:1.4 0.0003105 0.14 AML other m 2023-04-29T09:00:32.56
IV.ATCC.EHE. ML:0.8 0.0000382 1.34 AML other m 2023-04-29T09:00:33.67
IV.FDMO.HHE. ML:0.8 0.00006015 0.48 AML other m 2023-04-29T09:00:34.23
IV.FDMO.HHN. ML:0.7 0.000046049999999999994 1.1 AML other m 2023-04-29T09:00:34.25
IV.ASSB.HHN. ML:0.8 0.00005335 0.1 AML other m 2023-04-29T09:00:35.04
IV.ASSB.HHE. ML:0.8 0.00005185 0.48 AML other m 2023-04-29T09:00:35.24
IV.ATCC.EHN. ML:0.8 0.000036049999999999995 0.26 AML other m 2023-04-29T09:00:37.17
IV.NRCA.HHE. ML:0.9 0.00003800000000000001 0.56 AML other m 2023-04-29T09:00:38.37
IV.NRCA.HHN. ML:1.2 0.00007855000000000001 0.12 AML other m 2023-04-29T09:00:38.39
IV.SRES.HHE. ML:1.6 0.000044649999999999994 1.16 AML other m 2023-04-29T09:00:43.13
IV.SRES.HHN. ML:1.7 0.000055400000000000005 0.4 AML other m 2023-04-29T09:00:44.45
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