Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 19-10-2021 and time 15:35:54 (Italy) in region 3 km W Serrapetrona (MC)

A magnitude ML 0.7 earthquake occured in region: 3 km W Serrapetrona (MC), on

  • 19-10-2021 13:35:54 (UTC)
  • 19-10-2021 15:35:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1750, 13.1570 at 16 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
Serrapetrona MC 3 966 966
San Severino Marche MC 6 12726 13692
Belforte del Chienti MC 7 1886 15578
Caldarola MC 7 1823 17401
Camerino MC 8 6974 24375
Castelraimondo MC 9 4587 28962
Camporotondo di Fiastrone MC 10 563 29525
Gagliole MC 10 620 30145
Cessapalombo MC 11 512 30657
Tolentino MC 11 20069 50726
Muccia MC 14 915 51641
Pievebovigliana MC 14 866 52507
Pioraco MC 14 1134 53641
San Ginesio MC 15 3498 57139
Matelica MC 15 9981 67120
Fiastra MC 15 559 67679
Acquacanina MC 16 121 67800
Fiordimonte MC 16 202 68002
Colmurano MC 16 1263 69265
Pieve Torina MC 17 1458 70723
Sefro MC 17 422 71145
Ripe San Ginesio MC 18 852 71997
Urbisaglia MC 18 2628 74625
Fiuminata MC 18 1402 76027
Pollenza MC 19 6618 82645
Gualdo MC 19 815 83460
Esanatoglia MC 19 2034 85494
Sarnano MC 19 3264 88758
Treia MC 20 9403 98161

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NE of Foligno (57155 inhabitants)
57 Km SW of Ancona (100861 inhabitants)
63 Km E of Perugia (166134 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
75 Km S of Fano (60888 inhabitants)
80 Km NE of Terni (111501 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
94 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 0.7 2021-10-19
13:35:54		 43.1748 13.1572 16 2022-03-30
13:04:15		 Bollettino Sismico Italiano INGV 97270871
Reviewed
Rev100 		ML 1.2 2021-10-19
13:35:55		 43.1747 13.2743 17 2021-10-19
13:42:09		 Sala Sismica INGV-Roma 96763651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-19 13:35:54 ± 0.07
Latitude 43.1748 ± 0.0036
Longitude 13.1572 ± 0.0086
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97270871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 646
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 25
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) 0.45326
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 97270871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-05 10:28:54

ML:1.2

Field Value
Value 1.2
Uncertainty 0.5
Num. used stations 6
Type of magnitude ML
Reference to an origin 96763651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-19 13:42:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2021-10-19T13:37:27.86 3.0 undecidable manual Pg 14.64 0
IV.CAPR.HNZ. 2021-10-19T13:37:18.66 3.0 undecidable manual Sg 7.84 0
IV.MARS.HNZ. 2021-10-19T13:37:11.17 3.0 undecidable manual Pn -2.33 0
IV.PIPA.HHZ. 2021-10-19T13:37:10.83 3.0 undecidable manual Pg 11.7 0
IV.USI.HHZ. 2021-10-19T13:37:02.73 3.0 undecidable manual Pn 2.71 0
OT.OT17.EHZ. 2021-10-19T13:37:01.29 3.0 undecidable manual Sn 2.37 0
IV.VAGA.HHZ. 2021-10-19T13:37:00.20 3.0 undecidable manual Sg 3.86 0
IT.PLTA.HNZ. 2021-10-19T13:36:47.35 3.0 undecidable manual Sn -1.92 0
GU.POPM.HHZ. 2021-10-19T13:36:45.59 3.0 undecidable manual Sg 3 0
MN.TRI.HHZ. 2021-10-19T13:36:40.78 3.0 undecidable manual Sn -2.31 0
IV.SRES.HHZ. 2021-10-19T13:36:32.95 3.0 undecidable manual Sn -4.3 0
IV.CASP.HHZ. 2021-10-19T13:36:21.10 3.0 undecidable manual Pg 2.25 0
IV.RIBO.EHZ.01 2021-10-19T13:36:15.86 3.0 positive manual Pn -0.34 0
IV.MTRA.EHE. 2021-10-19T13:36:11.18 0.6 undecidable manual S 157 50.3163 98 0.27 44
IV.NRCA.HHZ. 2021-10-19T13:36:08.03 0.6 undecidable manual S 185 38.0286 102 0.35 44
IV.MF5.EHZ. 2021-10-19T13:36:06.04 0.3 undecidable manual S 130 32.1456 105 -0.1 71
IV.MMO1.EHN. 2021-10-19T13:36:06.04 0.3 undecidable manual S 156 33.5442 104 -0.47 66
IV.MC2.EHZ. 2021-10-19T13:36:05.66 0.3 undecidable manual S 175 29.3484 107 0.23 69
IV.MTRA.EHE. 2021-10-19T13:36:04.17 0.6 undecidable manual P 157 50.3163 98 0.02 47
IV.CING.HHZ. 2021-10-19T13:36:03.93 0.3 undecidable manual S 8 22.4553 114 0.22 72
IV.NRCA.HHZ. 2021-10-19T13:36:02.46 0.6 undecidable manual P 185 38.0286 102 0.17 46
IV.ASSB.HHN. 2021-10-19T13:36:02.85 0.6 undecidable manual P 250 42.9237 100 -0.19 46
IV.SSFR.HHN. 2021-10-19T13:36:02.80 0.6 undecidable manual P 314 41.9247 100 -0.08 47
IV.FDMO.HHN. 2021-10-19T13:36:02.64 0.3 undecidable manual S 200 16.3725 125 0.35 70
IV.EL6.EHZ. 2021-10-19T13:36:02.75 0.3 undecidable manual S 345 17.6712 122 0.16 73
IV.MMO1.EHN. 2021-10-19T13:36:01.19 0.6 undecidable manual P 156 33.5442 104 -0.42 44
IV.CSP1.EHZ. 2021-10-19T13:36:01.14 0.3 undecidable manual S 157 9.9789 142 0.09 75
IV.MC2.EHZ. 2021-10-19T13:36:01.16 0.3 undecidable manual P 175 29.3484 107 0.17 71
IV.FOSV.HNE. 2021-10-19T13:36:01.37 0.3 undecidable manual P 293 34.6431 103 -0.41 66
IV.MF5.EHZ. 2021-10-19T13:36:01.12 0.3 undecidable manual P 130 32.1456 105 -0.28 69
IV.CING.HHZ. 2021-10-19T13:36:00.12 0.1 undecidable manual P 8 22.4553 114 0.12 97
IV.CESI.HHZ. 2021-10-19T13:36:00.76 1.0 undecidable manual P 227 27.8499 108 -0.01 24
IV.PF6.EHN. 2021-10-19T13:36:00.23 0.3 undecidable manual S 144 5.0949 159 -0.18 73
IV.FDMO.HHN. 2021-10-19T13:35:59.13 0.1 undecidable manual P 200 16.3725 125 -0.05 99
IV.EL6.EHZ. 2021-10-19T13:35:59.33 0.1 undecidable manual P 345 17.6712 122 -0.03 98
IV.SNTG.HHE. 2021-10-19T13:35:59.63 0.6 undecidable manual P 297 19.6692 119 0.02 50
IV.PF6.EHN. 2021-10-19T13:35:58.04 0.1 undecidable manual P 144 5.0949 159 -0.06 100
IV.CSP1.EHZ. 2021-10-19T13:35:58.58 0.1 undecidable manual P 157 9.9789 142 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CING.HHE. ML:0.8 0.000035499999999999996 1.52 AML other m 2021-10-19T13:36:04.23
IV.CING.HHN. ML:0.6 0.000027400000000000002 1.1 AML other m 2021-10-19T13:36:04.59
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