Earthquake with magnitude of ML 0.3 on date 30-09-2021 and time 21:37:52 (Italy) in region 5 km SE Sefro (MC)

A magnitude ML 0.3 earthquake occured in region: 5 km SE Sefro (MC), on

  • 30-09-2021 19:37:52 (UTC)
  • 30-09-2021 21:37:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1250, 12.9970 at 14 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
Sefro MC 5 422 422
Camerino MC 6 6974 7396
Muccia MC 6 915 8311
Pioraco MC 6 1134 9445
Serravalle di Chienti MC 7 1070 10515
Fiuminata MC 9 1402 11917
Pieve Torina MC 10 1458 13375
Pievebovigliana MC 10 866 14241
Castelraimondo MC 11 4587 18828
Fiordimonte MC 12 202 19030
Gagliole MC 14 620 19650
Monte Cavallo MC 15 145 19795
Esanatoglia MC 15 2034 21829
Matelica MC 15 9981 31810
Fiastra MC 16 559 32369
Serrapetrona MC 17 966 33335
Nocera Umbra PG 17 5839 39174
Acquacanina MC 18 121 39295
San Severino Marche MC 19 12726 52021
Caldarola MC 19 1823 53844

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
69 Km NE of Terni (111501 inhabitants)
69 Km SW of Ancona (100861 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
80 Km S of Fano (60888 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
98 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 0.3 2021-09-30
19:37:52
43.1252 12.9973 15 2022-03-30
13:04:12
Bollettino Sismico Italiano INGV 96729251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-30 19:37:52 ± 0.15
Latitude 43.1252 ± 0.0054
Longitude 12.9973 ± 0.0074
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96729251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 16
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 96729251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-07 17:16:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2021-09-30T19:39:08.06 3.0 undecidable manual Sn -2.41 0
IV.CRJA.HHZ. 2021-09-30T19:39:08.00 3.0 undecidable manual Pn 0.88 0
IV.MSSA.HHZ. 2021-09-30T19:39:06.12 3.0 undecidable manual Sg 9.5 0
IV.ECTS.HHZ. 2021-09-30T19:39:04.20 3.0 undecidable manual Pn -4.46 0
AC.VLO.HHZ. 2021-09-30T19:39:01.76 3.0 undecidable manual Pn -3.57 0
OT.OT17.EHZ. 2021-09-30T19:38:51.46 3.0 undecidable manual Sn -1 0
GU.CANO.HHZ. 2021-09-30T19:38:49.78 3.0 undecidable manual Pg 13.14 0
IV.RNI2.HHZ. 2021-09-30T19:38:38.90 3.0 undecidable manual Sn -1.95 0
IV.PII.HHZ. 2021-09-30T19:38:37.06 3.0 undecidable manual Sn -0.02 0
IV.RIBO.EHZ.01 2021-09-30T19:38:35.34 3.0 undecidable manual Sn 3.76 0
IX.SCL3.EHZ.02 2021-09-30T19:38:34.46 3.0 positive manual Pn 0.28 0
CR.ZAG.BHZ. 2021-09-30T19:38:31.28 3.0 undecidable manual Pg 2.93 0
IV.MCRV.HHZ. 2021-09-30T19:38:28.10 3.0 positive manual Pn -3.31 0
IV.ZEN8.EHZ. 2021-09-30T19:38:25.82 3.0 undecidable manual Pg 2.13 0
GU.GRAM.HHZ. 2021-09-30T19:38:25.46 3.0 negative manual Pg 5.39 0
OX.SABO.HHZ. 2021-09-30T19:38:19.03 3.0 undecidable manual Pg -1.07 0
IV.MMO1.EHN. 2021-09-30T19:38:05.34 0.3 undecidable manual S 133 36.6411 98 0.21 69
IV.NRCA.HHZ. 2021-09-30T19:38:04.34 0.6 undecidable manual S 164 33.744 99 -0.02 48
IV.MC2.EHZ. 2021-09-30T19:38:03.27 0.6 undecidable manual S 147 28.3494 102 0.32 46
IV.CSP1.EHZ. 2021-09-30T19:38:00.21 0.3 undecidable manual S 102 17.1717 117 0.08 73
IV.CESI.HHZ. 2021-09-30T19:37:59.85 0.3 undecidable manual S 209 15.2736 121 0.16 73
IV.SNTG.HHZ. 2021-09-30T19:37:59.62 0.6 undecidable manual S 342 15.0738 122 -0.03 50
IV.MMO1.EHN. 2021-09-30T19:37:59.96 0.6 undecidable manual P 133 36.6411 98 0.03 48
IV.NRCA.HHZ. 2021-09-30T19:37:59.14 0.1 undecidable manual P 164 33.744 99 -0.35 91
IV.MC2.EHZ. 2021-09-30T19:37:58.37 0.1 undecidable manual P 147 28.3494 102 -0.31 93
IV.FDMO.HHZ. 2021-09-30T19:37:58.72 0.6 undecidable manual S 143 12.2766 130 -0.31 47
IV.CESI.HHZ. 2021-09-30T19:37:57.02 0.3 undecidable manual P 209 15.2736 121 0.23 72
IV.MML1.EHZ. 2021-09-30T19:37:57.47 0.3 undecidable manual S 238 2.3976 168 -0.18 74
IV.CSP1.EHZ. 2021-09-30T19:37:57.15 0.3 undecidable manual P 102 17.1717 117 0.1 73
IV.FDMO.HHZ. 2021-09-30T19:37:56.44 0.1 undecidable manual P 143 12.2766 130 0.03 100
IV.SNTG.HHZ. 2021-09-30T19:37:56.71 0.3 undecidable manual P 342 15.0738 122 -0.05 75
IV.MML1.EHZ. 2021-09-30T19:37:55.72 0.1 undecidable manual P 238 2.3976 168 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.5 0.000033564265 0.3072 AML other m 2021-09-30T19:37:57.54
IV.MML1.EHE. ML:0.5 0.00003515346 0.3584 AML other m 2021-09-30T19:37:57.88
IV.FDMO.HHN. ML:0.0 0.0000100967765 0.6784 AML other m 2021-09-30T19:37:59.28
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