Earthquake with magnitude of ML 1.1 on date 03-04-2023 and time 10:26:09 (UTC) in region 1 km SW Pioraco (MC)

A magnitude ML 1.1 earthquake occured in region: 1 km SW Pioraco (MC), on

  • 03-04-2023 10:26:09 (UTC)
  • 03-04-2023 12:26:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1740, 12.9760 at 20 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Pioraco MC 1 1134 1134
Sefro MC 4 422 1556
Fiuminata MC 4 1402 2958
Castelraimondo MC 8 4587 7545
Camerino MC 9 6974 14519
Esanatoglia MC 9 2034 16553
Matelica MC 10 9981 26534
Gagliole MC 11 620 27154
Serravalle di Chienti MC 11 1070 28224
Muccia MC 12 915 29139
Pievebovigliana MC 15 866 30005
Pieve Torina MC 16 1458 31463
Cerreto d'Esi AN 17 3817 35280
Nocera Umbra PG 17 5839 41119
Gualdo Tadino PG 17 15208 56327
Serrapetrona MC 17 966 57293
San Severino Marche MC 18 12726 70019
Fiordimonte MC 18 202 70221
Fabriano AN 19 31480 101701
Monte Cavallo MC 20 145 101846

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
66 Km SW of Ancona (100861 inhabitants)
73 Km NE of Terni (111501 inhabitants)
75 Km S of Fano (60888 inhabitants)
82 Km S of Pesaro (94582 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
94 Km E of Arezzo (99543 inhabitants)
98 Km NW of L'Aquila (69753 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
Bulletin
Rev1000
ML 1.1 2023-04-03
10:26:09
43.1737 12.9757 20 2024-03-01
17:18:08
Bollettino Sismico Italiano INGV 117400831
Reviewed
Rev100
ML 1.1 2023-04-03
10:26:09
43.1737 12.9722 18 2023-04-03
10:34:07
Sala Sismica INGV-Roma 116009331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-03 10:26:09 ± 0.17
Latitude 43.1737 ± 0.0036
Longitude 12.9757 ± 0.0074
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117400831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 638
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.19785
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 117400831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-16 07:46:03

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 116009331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-03 10:34:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHE. 2023-04-03T10:26:18.80 0.6 undecidable manual S 308 21.9669 125 0.21 47
IV.EL6.EHZ. 2023-04-03T10:26:18.14 0.3 undecidable manual S 30 20.0688 128 -0.05 73
IV.CESI.HHZ. 2023-04-03T10:26:18.13 0.1 undecidable manual S 197 19.5693 129 0.04 98
IV.CSP1.EHZ. 2023-04-03T10:26:18.47 0.1 undecidable manual S 116 20.6682 127 0.15 97
IV.ATCC.EHZ. 2023-04-03T10:26:18.96 3.0 undecidable manual S -0.14 0
IV.FDMO.HHZ. 2023-04-03T10:26:17.49 0.6 undecidable manual S 149 17.6712 133 -0.22 47
IV.SNTG.HHZ. 2023-04-03T10:26:16.14 0.3 undecidable manual S 343 9.4794 151 -0.2 72
IV.CSP1.EHZ. 2023-04-03T10:26:14.56 0.1 undecidable manual P 116 20.6682 127 0.01 99
IV.FOSV.EHE. 2023-04-03T10:26:14.57 0.1 undecidable manual P 308 21.9669 125 -0.13 97
IV.FDMO.HHZ. 2023-04-03T10:26:14.05 0.1 undecidable manual P 149 17.6712 133 -0.14 96
IV.EL6.EHZ. 2023-04-03T10:26:14.65 0.1 undecidable manual P 30 20.0688 128 0.18 95
IV.CESI.HHZ. 2023-04-03T10:26:14.49 0.1 undecidable manual P 197 19.5693 129 0.07 97
IV.SNTG.HHZ. 2023-04-03T10:26:13.35 0.1 positive manual P 343 9.4794 151 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.7 0.000029751803555000002 0.6624 AML other m 2023-04-03T10:26:14.18
IV.SNTG.HNE. ML:1.2 0.00010352007 1.2 AML other m 2023-04-03T10:26:15.71
IV.SNTG.HHE. ML:1.0 0.00006781279500000002 0.1408 AML other m 2023-04-03T10:26:16.31
IV.SNTG.HHN. ML:0.9 0.000057223139 0.1792 AML other m 2023-04-03T10:26:16.35
IV.FDMO.HHN. ML:0.9 0.000050153450000000003 0.096 AML other m 2023-04-03T10:26:17.86
IV.CESI.HNN. ML:1.3 0.00010237293 0.5248 AML other m 2023-04-03T10:26:18.08
IV.CESI.HHE. ML:1.0 0.000050466225 0.2176 AML other m 2023-04-03T10:26:18.42
IV.CESI.HHN. ML:1.0 0.000056680285 0.2368 AML other m 2023-04-03T10:26:19.44
IV.SNTG.HNN. ML:1.2 0.00010507493500000001 0.7616 AML other m 2023-04-03T10:26:21.60
IV.EL6.EHN. ML:1.4 0.0001360341 0.5216 AML other m 2023-04-03T10:26:23.47
IV.EL6.EHE. ML:1.5 0.00017074705 0.5984 AML other m 2023-04-03T10:26:24.61
IV.CESI.HNE. ML:1.4 0.000122585895 1.2704 AML other m 2023-04-03T10:26:26.36
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