Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 23-04-2021 and time 05:28:59 (UTC) in region 4 km W Pieve Torina (MC)

A magnitude ML 1.5 earthquake occured in region: 4 km W Pieve Torina (MC), on

  • 23-04-2021 05:28:59 (UTC)
  • 23-04-2021 07:28:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0560, 13.0040 at 15 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
Pieve Torina MC 4 1458 1458
Muccia MC 5 915 2373
Serravalle di Chienti MC 5 1070 3443
Pievebovigliana MC 7 866 4309
Monte Cavallo MC 7 145 4454
Fiordimonte MC 7 202 4656
Camerino MC 10 6974 11630
Sefro MC 11 422 12052
Fiastra MC 13 559 12611
Pioraco MC 14 1134 13745
Acquacanina MC 14 121 13866
Visso MC 15 1107 14973
Fiuminata MC 16 1402 16375
Ussita MC 17 444 16819
Castelraimondo MC 18 4587 21406
Nocera Umbra PG 18 5839 27245
Sellano PG 19 1079 28324
Bolognola MC 19 142 28466
Preci PG 20 724 29190

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
62 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
95 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
Bulletin
Rev1000 		ML 1.5 2021-04-23
05:28:59		 43.0555 13.0043 15 2021-07-12
16:55:14		 Bollettino Sismico Italiano INGV 90941471
Reviewed
Rev100 		ML 1.5 2021-04-23
05:28:59		 43.0517 13.0025 16 2021-04-23
05:34:59		 Sala Sismica INGV-Roma 89386831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-23 05:28:59 ± 0.04
Latitude 43.0555 ± 0.0018
Longitude 13.0043 ± 0.0025
Depth (km) 15 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90941471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 238
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.50452
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 90941471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-08 14:20:43

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 89386831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-23 05:34:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2021-04-23T05:29:16.66 0.6 undecidable manual S 336 55.9995 95 0.15 45
IV.ARVD.HHE. 2021-04-23T05:29:15.17 0.6 undecidable manual S 354 49.3173 96 0.42 43
IV.LNSS.HNZ. 2021-04-23T05:29:15.47 0.6 undecidable manual S 177 50.3163 96 0.47 42
IV.MOMA.HNZ. 2021-04-23T05:29:13.87 0.3 undecidable manual S 232 45.0216 97 0.28 66
IV.SSFR.HHZ. 2021-04-23T05:29:13.94 0.6 undecidable manual S 337 45.9207 97 0.11 46
IV.CING.HNZ. 2021-04-23T05:29:12.15 0.3 undecidable manual S 23 38.7279 98 0.22 68
IV.FOSV.HNE. 2021-04-23T05:29:10.48 0.3 undecidable manual S 324 33.0447 101 0.04 71
IV.EL6.EHZ. 2021-04-23T05:29:10.14 0.3 undecidable manual S 15 31.3464 101 0.14 70
IV.MMO1.EHZ. 2021-04-23T05:29:10.06 0.3 undecidable manual S 123 31.3464 101 0.06 71
IV.ATCC.EHZ. 2021-04-23T05:29:10.66 0.6 undecidable manual S 296 32.8449 101 0.28 45
IV.FRON.EHZ. 2021-04-23T05:29:09.10 0.3 undecidable manual P 336 55.9995 95 -0.04 68
IV.ASSB.HHZ. 2021-04-23T05:29:09.09 0.3 undecidable manual S 267 28.0497 104 -0.04 72
IV.NRCA.HHZ. 2021-04-23T05:29:08.60 0.3 undecidable manual S 160 26.1516 105 -0.05 72
IV.LNSS.HNZ. 2021-04-23T05:29:07.86 0.3 undecidable manual P 177 50.3163 96 -0.4 64
IV.ARVD.HHE. 2021-04-23T05:29:07.81 0.6 undecidable manual P 354 49.3173 96 -0.31 43
IV.MC2.EHZ. 2021-04-23T05:29:07.69 0.6 undecidable manual S 137 21.867 110 0.13 48
IV.SSFR.HHZ. 2021-04-23T05:29:07.51 0.1 undecidable manual P 337 45.9207 97 -0.08 92
IV.MOMA.HNZ. 2021-04-23T05:29:07.64 0.1 undecidable manual P 232 45.0216 97 0.19 90
IV.CING.HNZ. 2021-04-23T05:29:06.38 0.1 undecidable manual P 23 38.7279 98 -0.11 92
IV.CSP1.EHZ. 2021-04-23T05:29:06.72 0.6 undecidable manual S 76 16.7721 119 0.41 45
IV.PF6.EHN. 2021-04-23T05:29:06.52 0.6 undecidable manual S 59 17.871 117 -0.06 49
IV.MDAR.HNN. 2021-04-23T05:29:06.76 0.6 undecidable manual S 36 18.87 115 -0.06 48
IV.MMO1.EHZ. 2021-04-23T05:29:05.29 0.1 undecidable manual P 123 31.3464 101 -0.09 94
IV.EL6.EHZ. 2021-04-23T05:29:05.20 0.1 undecidable manual P 15 31.3464 101 -0.18 92
IV.FOSV.HNE. 2021-04-23T05:29:05.50 0.1 undecidable manual P 324 33.0447 101 -0.13 93
IV.FEMA.HNE. 2021-04-23T05:29:05.24 0.6 undecidable manual S 160 10.9779 135 0.16 48
IV.ATCC.EHZ. 2021-04-23T05:29:05.51 0.1 undecidable manual P 296 32.8449 101 -0.09 94
IV.FIU1.HNZ. 2021-04-23T05:29:05.95 0.6 undecidable manual S 338 15.873 121 -0.16 48
IV.FDMO.HHZ. 2021-04-23T05:29:04.28 0.3 undecidable manual S 107 7.0929 149 -0.15 73
IT.MTCL.HGZ. 2021-04-23T05:29:04.18 0.3 undecidable manual S 183 6.8931 150 -0.22 72
IV.CESI.HHZ. 2021-04-23T05:29:04.90 0.3 undecidable manual S 235 9.879 139 0.03 74
IV.ASSB.HHZ. 2021-04-23T05:29:04.72 0.1 negative manual P 267 28.0497 104 -0.16 93
IV.MC2.EHZ. 2021-04-23T05:29:04.01 0.1 undecidable manual P 137 21.867 110 0.04 97
IV.MML1.HNE. 2021-04-23T05:29:04.32 0.3 undecidable manual S 338 6.993 149 -0.1 74
IV.NRCA.HHZ. 2021-04-23T05:29:04.47 0.1 positive manual P 160 26.1516 105 -0.13 94
IV.MDAR.HNN. 2021-04-23T05:29:03.49 0.6 undecidable manual P 36 18.87 115 -0.05 48
IV.CSP1.EHZ. 2021-04-23T05:29:03.35 0.1 undecidable manual P 76 16.7721 119 0.1 96
IV.FIU1.HNZ. 2021-04-23T05:29:03.15 0.3 undecidable manual P 338 15.873 121 0.02 74
IV.PF6.EHN. 2021-04-23T05:29:03.39 0.1 positive manual P 59 17.871 117 -0.01 98
IV.MML1.HNE. 2021-04-23T05:29:02.16 0.1 negative manual P 338 6.993 149 0 100
IV.FDMO.HHZ. 2021-04-23T05:29:02.16 0.1 undecidable manual P 107 7.0929 149 0 100
IT.MTCL.HGZ. 2021-04-23T05:29:02.11 0.1 undecidable manual P 183 6.8931 150 -0.04 99
IV.CESI.HHZ. 2021-04-23T05:29:02.50 0.1 negative manual P 235 9.879 139 0.08 98
IV.FEMA.HNE. 2021-04-23T05:29:02.70 0.3 undecidable manual P 160 10.9779 135 0.16 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.4 0.000301 0.48 AML other m 2021-04-23T05:29:04.46
IV.FDMO.HHN. ML:1.6 0.000381 0.14 AML other m 2021-04-23T05:29:04.54
IV.CESI.HNN. ML:1.7 0.0005125 0.24 AML other m 2021-04-23T05:29:05.14
IV.CESI.HHE. ML:1.8 0.000561 0.2 AML other m 2021-04-23T05:29:05.04
IV.CESI.HNE. ML:1.7 0.000514 0.18 AML other m 2021-04-23T05:29:05.04
IV.CESI.HHN. ML:1.7 0.0005325 0.52 AML other m 2021-04-23T05:29:05.14
IV.NRCA.HHN. ML:1.5 0.0001715 0.1 AML other m 2021-04-23T05:29:09.00
IV.ASSB.HHN. ML:1.2 0.00008319999999999999 0.7 AML other m 2021-04-23T05:29:09.27
IV.ASSB.HHE. ML:1.2 0.0000835 1.32 AML other m 2021-04-23T05:29:10.67
IV.EL6.EHN. ML:1.5 0.000139 0.96 AML other m 2021-04-23T05:29:10.94
IV.EL6.EHE. ML:1.5 0.000146 0.18 AML other m 2021-04-23T05:29:10.58
IV.ATCC.EHN. ML:1.2 0.0000628 1.6 AML other m 2021-04-23T05:29:10.85
IV.ATCC.EHE. ML:1.2 0.00006654999999999999 0.28 AML other m 2021-04-23T05:29:10.93
IV.NRCA.HHE. ML:1.3 0.00010405000000000001 1.84 AML other m 2021-04-23T05:29:10.96
IV.SSFR.HHN. ML:1.6 0.00010445 0.32 AML other m 2021-04-23T05:29:14.53
IV.SSFR.HHE. ML:1.6 0.00010875 0.22 AML other m 2021-04-23T05:29:14.72
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