Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 25-04-2023 and time 21:30:06 (Italy) in region 2 km SE Pioraco (MC)

A magnitude ML 0.7 earthquake occured in region: 2 km SE Pioraco (MC), on

  • 25-04-2023 19:30:06 (UTC)
  • 25-04-2023 21:30:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1640, 12.9960 at 13 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.

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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
Pioraco MC 2 1134 1134
Sefro MC 4 422 1556
Fiuminata MC 6 1402 2958
Camerino MC 7 6974 9932
Castelraimondo MC 7 4587 14519
Muccia MC 10 915 15434
Gagliole MC 10 620 16054
Matelica MC 10 9981 26035
Esanatoglia MC 11 2034 28069
Serravalle di Chienti MC 11 1070 29139
Pievebovigliana MC 13 866 30005
Pieve Torina MC 14 1458 31463
Serrapetrona MC 16 966 32429
Fiordimonte MC 16 202 32631
San Severino Marche MC 17 12726 45357
Cerreto d'Esi AN 18 3817 49174
Nocera Umbra PG 18 5839 55013
Gualdo Tadino PG 19 15208 70221
Monte Cavallo MC 19 145 70366
Caldarola MC 19 1823 72189
Fiastra MC 19 559 72748
Belforte del Chienti MC 20 1886 74634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
66 Km SW of Ancona (100861 inhabitants)
73 Km NE of Terni (111501 inhabitants)
76 Km S of Fano (60888 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
83 Km S of Pesaro (94582 inhabitants)
96 Km NW of L'Aquila (69753 inhabitants)
96 Km E of Arezzo (99543 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 0.7 2023-04-25
19:30:06		 43.1643 12.996 13 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124656411
Reviewed
Rev100 		ML 2.0 2023-04-25
19:30:06		 43.1642 13.0095 13 2023-04-25
19:37:45		 Sala Sismica INGV-Roma 116750051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 19:30:06 ± 0.08
Latitude 43.1643 ± 0.0027
Longitude 12.9960 ± 0.0062
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124656411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 466
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25631
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 1.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 116750051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-25 19:37:45

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 124656411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-30 11:48:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ML.XLND.HHZ. 2023-04-25T19:31:30.82 3.0 positive manual Pn -4.97 0
IV.BDI.HHZ. 2023-04-25T19:31:21.22 3.0 undecidable manual Sg 6.09 0
IV.IVPL.HHZ. 2023-04-25T19:31:19.36 3.0 undecidable manual Pg 15.19 0
IV.RIBO.EHZ.01 2023-04-25T19:31:08.41 3.0 undecidable manual Sg 5.58 0
GU.GRAM.HHZ. 2023-04-25T19:30:55.24 3.0 negative manual Pg 9.3 0
IV.PLMA.HHZ. 2023-04-25T19:30:48.06 3.0 undecidable manual Pn 2.28 0
IV.MOCO.HHZ. 2023-04-25T19:30:47.56 3.0 undecidable manual Sn -2.15 0
OT.OT15.EHZ. 2023-04-25T19:30:31.20 3.0 positive manual Pn -6.57 0
IV.CSNT.HHZ. 2023-04-25T19:30:27.61 3.0 negative manual Pn -2.39 0
IV.PTRJ.HHZ. 2023-04-25T19:30:16.88 3.0 undecidable manual Pn -6.06 0
IV.CING.HNZ. 2023-04-25T19:30:16.60 0.6 undecidable manual S 34 28.4493 97 0.35 45
IV.EL6.EHZ. 2023-04-25T19:30:14.08 0.6 undecidable manual S 25 20.1687 103 -0.01 49
IV.CESI.HHZ. 2023-04-25T19:30:13.93 0.6 undecidable manual S 203 19.1697 105 0.11 48
IV.FDMO.HHZ. 2023-04-25T19:30:12.74 0.6 undecidable manual S 152 15.9729 112 -0.27 48
IV.MML1.EHZ. 2023-04-25T19:30:11.04 0.6 undecidable manual S 199 5.994 149 0.09 50
IV.CING.HNZ. 2023-04-25T19:30:11.95 0.3 undecidable manual P 34 28.4493 97 -0.04 73
IV.RM33.HNZ. 2023-04-25T19:30:11.73 3.0 undecidable manual P 0.48 0
IV.SNTG.HHZ. 2023-04-25T19:30:11.70 0.6 undecidable manual S 336 10.9779 127 -0.15 48
IV.EL6.EHZ. 2023-04-25T19:30:10.65 0.1 undecidable manual P 25 20.1687 103 -0.1 97
IV.FDMO.HHZ. 2023-04-25T19:30:10.10 0.1 undecidable manual P 152 15.9729 112 -0.03 99
IV.CESI.HHZ. 2023-04-25T19:30:10.62 0.1 positive manual P 203 19.1697 105 0.02 98
IV.SNTG.HHZ. 2023-04-25T19:30:09.45 0.3 undecidable manual P 336 10.9779 127 0 75
IV.MML1.EHZ. 2023-04-25T19:30:09.01 0.1 undecidable manual P 199 5.994 149 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.HNN. ML:0.8 0.00008269952499999999 0.6016 AML other m 2023-04-25T19:30:09.09
IV.SNTG.HNE. ML:1.0 0.00010936748499999998 0.576 AML other m 2023-04-25T19:30:09.09
IV.MML1.EHE. ML:0.2 0.000020709865 0.6016 AML other m 2023-04-25T19:30:10.51
IV.CESI.HNN. ML:1.1 0.00009497351000000001 0.8704 AML other m 2023-04-25T19:30:11.28
IV.MML1.EHN. ML:0.2 0.0000216020709 0.1536 AML other m 2023-04-25T19:30:11.76
IV.SNTG.HHE. ML:0.4 0.000026831908850000004 0.1024 AML other m 2023-04-25T19:30:11.85
IV.SNTG.HHN. ML:0.4 0.0000259581185 0.128 AML other m 2023-04-25T19:30:11.87
IV.FDMO.HHE. ML:0.4 0.000020680709999999997 0.1408 AML other m 2023-04-25T19:30:13.16
IV.FDMO.HHN. ML:0.6 0.000032359995 0.1408 AML other m 2023-04-25T19:30:13.30
IV.CESI.HHE. ML:0.7 0.0000356014569 0.1664 AML other m 2023-04-25T19:30:14.05
IV.CESI.HNE. ML:1.4 0.00016171238499999998 0.7296 AML other m 2023-04-25T19:30:14.05
IV.MML1.HNE. ML:0.8 0.000081021565 0.6272 AML other m 2023-04-25T19:30:15.80
IV.SNTG.HNN. ML:0.9 0.00008535984999999999 0.576 AML other m 2023-04-25T19:30:16.93
IV.CESI.HHN. ML:0.7 0.000032578709999999994 1.1904 AML other m 2023-04-25T19:30:19.93
IV.EL6.EHN. ML:1.2 0.0001161214 2.176 AML other m 2023-04-25T19:30:21.42
IV.EL6.EHE. ML:1.1 0.00008240132 1.6768 AML other m 2023-04-25T19:30:20.99
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
Waveforms Seismic signals in miniseed + resp format Download