Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 30-11-2021 and time 11:49:55 (Italy) in region 3 km W San Severino Marche (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km W San Severino Marche (MC), on

  • 30-11-2021 10:49:55 (UTC)
  • 30-11-2021 11:49:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2350, 13.1460 at 14 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
San Severino Marche MC 3 12726 12726
Gagliole MC 6 620 13346
Serrapetrona MC 7 966 14312
Castelraimondo MC 8 4587 18899
Belforte del Chienti MC 11 1886 20785
Matelica MC 11 9981 30766
Tolentino MC 12 20069 50835
Caldarola MC 13 1823 52658
Camerino MC 13 6974 59632
Pioraco MC 14 1134 60766
Camporotondo di Fiastrone MC 15 563 61329
Treia MC 16 9403 70732
Cerreto d'Esi AN 16 3817 74549
Esanatoglia MC 16 2034 76583
Poggio San Vicino MC 17 246 76829
Cingoli MC 17 10352 87181
Cessapalombo MC 17 512 87693
Pollenza MC 17 6618 94311
Apiro MC 18 2280 96591
Fiuminata MC 18 1402 97993
Sefro MC 19 422 98415
Colmurano MC 19 1263 99678
Muccia MC 19 915 100593
Urbisaglia MC 19 2628 103221
Pievebovigliana MC 20 866 104087
San Ginesio MC 20 3498 107585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km NE of Foligno (57155 inhabitants)
52 Km SW of Ancona (100861 inhabitants)
63 Km E of Perugia (166134 inhabitants)
69 Km S of Fano (60888 inhabitants)
78 Km S of Pesaro (94582 inhabitants)
79 Km NW of Teramo (54892 inhabitants)
85 Km NE of Terni (111501 inhabitants)
100 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
Reviewed
Rev100 		ML 1.1 2021-11-30
10:49:55		 43.235 13.1463 14 2021-11-30
10:58:07		 Sala Sismica INGV-Roma 97965371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-30 10:49:55 ± 0.08
Latitude 43.2350 ± 0.0027
Longitude 13.1463 ± 0.0049
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97965371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33635
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 97965371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-30 10:58:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2021-11-30T10:50:15.24 3.0 undecidable manual S 0.07 0
IV.PIEI.HHZ. 2021-11-30T10:50:06.45 3.0 undecidable manual P -0.15 0
IV.FDMO.HHZ. 2021-11-30T10:50:04.24 0.3 undecidable manual S 192 22.5552 105 -0.04 97
IV.MF5.EHZ. 2021-11-30T10:50:03.37 0.3 undecidable manual P 137 37.3293 96 0.47 87
IV.CSP1.EHZ. 2021-11-30T10:50:02.86 0.3 undecidable manual S 163 16.5723 115 0.08 98
IV.CING.HHZ. 2021-11-30T10:50:02.39 0.3 undecidable manual S 14 16.0728 116 -0.27 95
IV.MC2.EHZ. 2021-11-30T10:50:02.64 0.3 undecidable manual P 174 36.0417 97 -0.06 94
IV.SNTG.HHZ. 2021-11-30T10:50:02.80 0.3 undecidable manual S 278 16.7721 115 -0.03 99
IV.CESI.HHZ. 2021-11-30T10:50:02.01 0.3 undecidable manual P 218 32.1456 98 -0.1 94
IV.GUMA.HHZ. 2021-11-30T10:50:01.13 0.3 undecidable manual P 141 24.4533 103 0.19 94
IV.PF6.EHZ. 2021-11-30T10:50:01.45 0.3 undecidable manual S 160 11.4774 130 -0.17 96
IV.EL6.EHZ. 2021-11-30T10:50:01.86 0.3 undecidable manual S 341 11.0778 131 0.31 92
IV.MDAR.HNZ. 2021-11-30T10:50:00.49 0.3 undecidable manual S 184 4.6953 157 -0.05 100
IV.FDMO.HHZ. 2021-11-30T10:50:00.51 0.3 undecidable manual P 192 22.5552 105 -0.14 95
IV.GAG1.HNZ. 2021-11-30T10:50:00.78 0.3 undecidable manual S 273 6.3936 149 0.04 99
IV.CING.HHZ. 2021-11-30T10:49:59.54 0.3 undecidable manual P 14 16.0728 116 -0.18 96
IV.SNTG.HHZ. 2021-11-30T10:49:59.73 0.3 undecidable manual P 278 16.7721 115 -0.09 98
IV.CSP1.EHZ. 2021-11-30T10:49:59.81 0.3 undecidable manual P 163 16.5723 115 0.02 99
IV.PF6.EHZ. 2021-11-30T10:49:59.00 0.3 undecidable manual P 160 11.4774 130 -0.12 97
IV.EL6.EHZ. 2021-11-30T10:49:59.06 0.3 undecidable manual P 341 11.0778 131 -0.02 99
IV.GAG1.HNZ. 2021-11-30T10:49:58.65 0.3 undecidable manual P 273 6.3936 149 0.04 99
IV.MDAR.HNZ. 2021-11-30T10:49:58.64 0.3 undecidable manual P 184 4.6953 157 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:1.2 0.00012215 1.8 AML other m 2021-11-30T10:50:02.94
IV.SNTG.HHN. ML:1.2 0.00011075 1.04 AML other m 2021-11-30T10:50:03.05
IV.GUMA.HHE. ML:1.5 0.0001855 0.26 AML other m 2021-11-30T10:50:05.58
IV.GUMA.HHN. ML:1.5 0.00017254605 0.1792 AML other m 2021-11-30T10:50:05.66
IV.EL6.EHE. ML:1.1 0.00011645268000000001 0.2048 AML other m 2021-11-30T10:50:01.98
IV.EL6.EHN. ML:0.8 0.0000567497955 0.1408 AML other m 2021-11-30T10:49:59.55
IV.CING.HHE. ML:1.1 0.0000875525355 0.1792 AML other m 2021-11-30T10:50:02.65
IV.CING.HHN. ML:1.0 0.000071048252 0.1408 AML other m 2021-11-30T10:50:02.56
IV.SNTG.HNE. ML:1.3 0.00015620075 0.2304 AML other m 2021-11-30T10:50:02.94
IV.SNTG.HNN. ML:1.0 0.000087138575 0.1792 AML other m 2021-11-30T10:50:03.76
IV.CSP1.EHE. ML:1.1 0.00010736049999999998 0.1344 AML other m 2021-11-30T10:50:03.38
IV.CSP1.EHN. ML:1.1 0.000092233625 0.1216 AML other m 2021-11-30T10:50:03.86
IV.FDMO.HHE. ML:0.8 0.000037826865 0.3392 AML other m 2021-11-30T10:50:04.73
IV.FDMO.HHN. ML:0.7 0.000028904449999999997 0.1216 AML other m 2021-11-30T10:50:05.16
IV.MC2.EHE. ML:1.3 0.000081629155 0.3008 AML other m 2021-11-30T10:50:08.55
IV.MC2.EHN. ML:1.4 0.00008377905000000002 0.2432 AML other m 2021-11-30T10:50:10.38
IV.PIEI.HHE. ML:0.7 0.0000121878265 0.0192 AML other m 2021-11-30T10:50:15.57
IV.PIEI.HHN. ML:0.7 0.0000091652675 0.224 AML other m 2021-11-30T10:50:15.22
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