Earthquake (quarry blast) with magnitude of ML 0.6 on date 20-04-2023 and time 08:49:13 (UTC) in region 5 km SW Serrapetrona (MC)

A magnitude ML 0.6 (quarry blast) earthquake occured in region: 5 km SW Serrapetrona (MC), on

  • 20-04-2023 08:49:13 (UTC)
  • 20-04-2023 10:49:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1430, 13.1500 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Serrapetrona MC 5 966 966
Caldarola MC 6 1823 2789
Camerino MC 7 6974 9763
Belforte del Chienti MC 8 1886 11649
Camporotondo di Fiastrone MC 10 563 12212
Cessapalombo MC 10 512 12724
San Severino Marche MC 10 12726 25450
Pievebovigliana MC 10 866 26316
Castelraimondo MC 11 4587 30903
Muccia MC 11 915 31818
Fiastra MC 12 559 32377
Acquacanina MC 13 121 32498
Fiordimonte MC 13 202 32700
Gagliole MC 13 620 33320
Tolentino MC 13 20069 53389
Pieve Torina MC 14 1458 54847
Pioraco MC 14 1134 55981
San Ginesio MC 14 3498 59479
Sefro MC 16 422 59901
Colmurano MC 17 1263 61164
Sarnano MC 17 3264 64428
Matelica MC 17 9981 74409
Gualdo MC 17 815 75224
Bolognola MC 18 142 75366
Ripe San Ginesio MC 18 852 76218
Serravalle di Chienti MC 18 1070 77288
Fiuminata MC 18 1402 78690
Urbisaglia MC 19 2628 81318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Foligno (57155 inhabitants)
61 Km SW of Ancona (100861 inhabitants)
62 Km E of Perugia (166134 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
77 Km NE of Terni (111501 inhabitants)
79 Km S of Fano (60888 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
90 Km N 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 0.6 2023-04-20
08:49:13
43.1427 13.1502 1 2024-03-01
17:18:20
Bollettino Sismico Italiano INGV 124871471
Reviewed
Rev100
ML 0.7 2023-04-20
08:49:12
43.1427 13.1783 10 2023-04-20
08:55:26
Sala Sismica INGV-Roma 116544121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-20 08:49:13 ± 0.07
Latitude 43.1427 ± 0.0045
Longitude 13.1502 ± 0.0062
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 124871471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.31027
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 124871471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-26 13:57:33

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 116544121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-20 08:55:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-04-20T08:49:19.92 0.3 undecidable manual P 185 34.4433 91 -0.28 67
IV.CESI.HHZ. 2023-04-20T08:49:18.15 0.3 undecidable manual P 233 25.0527 91 -0.18 70
IV.SNTG.HHZ. 2023-04-20T08:49:17.65 0.3 undecidable manual P 306 21.0678 91 0.13 71
IV.EL6.EHZ. 2023-04-20T08:49:17.28 0.1 undecidable manual P 349 21.0678 91 -0.25 92
IV.MML1.EHZ. 2023-04-20T08:49:16.44 0.3 undecidable manual P 257 14.7741 92 0.16 71
IV.FDMO.HHZ. 2023-04-20T08:49:16.02 0.3 undecidable manual P 203 12.7761 92 0.14 72
IV.PF6.EHZ. 2023-04-20T08:49:14.04 0.1 undecidable manual P 98 3.5964 98 0 100
IV.CSP1.EHZ. 2023-04-20T08:49:14.87 0.1 positive manual P 142 7.1928 94 0.12 97
IV.MDAR.HNZ. 2023-04-20T08:49:14.56 0.1 undecidable manual P 354 5.5944 95 0.13 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.5 0.000038100000000000005 1.12 AML other m 2023-04-20T08:49:22.08
IV.CESI.HHN. ML:0.7 0.000028499999999999998 0.72 AML other m 2023-04-20T08:49:23.03
IV.CESI.HHE. ML:0.5 0.000022199999999999998 0.76 AML other m 2023-04-20T08:49:23.41
IV.MML1.EHE. ML:0.5 0.000034500000000000005 0.9 AML other m 2023-04-20T08:49:24.54
IV.NRCA.HHN. ML:0.7 0.0000175 0.28 AML other m 2023-04-20T08:49:27.66
IV.NRCA.HHE. ML:0.5 0.0000156 1.02 AML other m 2023-04-20T08:49:30.81
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