Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 07-07-2021 and time 08:56:48 (Italy) in region 6 km W Montegallo (AP)

A magnitude ML 2.0 earthquake occured in region: 6 km W Montegallo (AP), on

  • 07-07-2021 06:56:48 (UTC)
  • 07-07-2021 08:56:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8610, 13.2610 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
Montegallo AP 6 523 523
Montemonaco AP 7 604 1127
Castelsantangelo sul Nera MC 10 281 1408
Arquata del Tronto AP 10 1178 2586
Montefortino FM 11 1178 3764
Ussita MC 14 444 4208
Bolognola MC 15 142 4350
Norcia PG 16 4957 9307
Amandola FM 16 3629 12936
Acquasanta Terme AP 16 2916 15852
Visso MC 16 1107 16959
Comunanza AP 17 3166 20125
Palmiano AP 17 196 20321
Roccafluvione AP 18 2010 22331
Preci PG 18 724 23055
Accumoli RI 18 667 23722
Venarotta AP 19 2066 25788
Sarnano MC 20 3264 29052

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
60 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
87 Km S of Ancona (100861 inhabitants)
90 Km NW of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 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 2.0 2021-07-07
06:56:48		 42.8607 13.2607 16 2021-12-29
11:12:16		 Bollettino Sismico Italiano INGV 93336561
Reviewed
Rev100 		ML 2.0 2021-07-07
06:56:48		 42.8652 13.266 15 2021-07-07
07:02:48		 Sala Sismica INGV-Roma 92341531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-07 06:56:48 ± 0.07
Latitude 42.8607 ± 0.0027
Longitude 13.2607 ± 0.0061
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 93336561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 443
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.85705
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 93336561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-29 07:53:25

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 92341531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-07 07:02:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.HNE. 2021-07-07T06:57:08.35 0.6 undecidable manual S 320 62.8926 96 0.62 40
IV.CING.HNZ. 2021-07-07T06:57:07.27 0.6 undecidable manual S 355 57.3981 97 1.01 35
IV.ASSB.HHN. 2021-07-07T06:57:05.52 0.6 undecidable manual S 293 52.9026 97 0.45 43
IV.PIEI.HHZ. 2021-07-07T06:57:04.10 0.6 undecidable manual P 322 95.1381 94 -0.42 40
IV.AOI.HHE. 2021-07-07T06:57:02.69 0.6 undecidable manual P 20 81.3519 94 0.29 43
IV.T0110.HHZ. 2021-07-07T06:57:02.13 0.6 undecidable manual P 149 81.7515 94 -0.33 42
IV.ATSC.EHE. 2021-07-07T06:57:01.79 0.6 undecidable manual P 324 77.8665 94 -0.08 45
IV.SSFR.HHN. 2021-07-07T06:57:01.49 0.6 undecidable manual P 329 74.6697 95 0.12 45
IV.RM33.EHZ. 2021-07-07T06:57:01.81 0.6 undecidable manual S 186 39.2274 101 0.35 45
IV.ARVD.HHE. 2021-07-07T06:57:01.35 0.3 undecidable manual P 340 75.2691 95 -0.12 67
IV.LNSS.HHZ. 2021-07-07T06:57:00.67 0.6 undecidable manual S 212 33.744 103 0.62 42
IV.GAVE.EHZ. 2021-07-07T06:57:00.91 0.6 undecidable manual S 238 35.2425 103 0.49 44
IV.CESI.HHE. 2021-07-07T06:57:00.02 0.6 undecidable manual S 299 33.0447 104 0.16 48
IV.MML1.EHZ. 2021-07-07T06:57:00.77 0.6 undecidable manual S 320 36.5412 102 0 49
IV.FIAM.HHZ. 2021-07-07T06:56:59.99 0.6 undecidable manual P 190 66.7776 95 -0.17 45
IV.SAP2.EHZ. 2021-07-07T06:56:59.21 0.3 undecidable manual S 23 28.4493 107 0.52 67
IV.FOSV.HNE. 2021-07-07T06:56:59.38 0.6 undecidable manual P 320 62.8926 96 -0.19 45
IV.ASSB.HHN. 2021-07-07T06:56:58.02 0.3 undecidable manual P 293 52.9026 97 -0.01 71
IV.SMA1.EHZ. 2021-07-07T06:56:58.14 0.6 undecidable manual S 167 26.2515 109 0.02 49
IV.T1299.HNN. 2021-07-07T06:56:58.28 0.6 undecidable manual S 176 25.1526 110 0.43 45
IV.CING.HNZ. 2021-07-07T06:56:58.45 0.6 undecidable manual P 355 57.3981 97 -0.27 44
IV.EL6.EHE. 2021-07-07T06:56:57.88 0.3 undecidable manual P 346 53.502 97 -0.26 67
IV.GUMA.HHZ. 2021-07-07T06:56:57.70 0.6 undecidable manual S 15 23.2545 113 0.34 47
IV.CSP1.EHZ. 2021-07-07T06:56:57.82 0.6 undecidable manual S 350 26.0517 109 -0.24 47
IV.GIGS.HHN. 2021-07-07T06:56:57.42 0.6 undecidable manual P 150 51.9036 97 -0.46 43
IV.FDMO.HHZ. 2021-07-07T06:56:57.28 0.3 undecidable manual S 324 24.0537 112 -0.29 71
IV.MF5.EHZ. 2021-07-07T06:56:57.41 0.3 undecidable manual S 49 21.4674 115 0.48 69
IV.OFFI.HHZ. 2021-07-07T06:56:56.08 3.0 undecidable manual P 35.5422 0.69 0
IV.TERO.HHZ. 2021-07-07T06:56:55.60 0.6 undecidable manual P 133 38.4282 101 -0.24 46
IV.MTRA.HNZ. 2021-07-07T06:56:55.44 0.3 undecidable manual S 136 15.9729 125 -0.23 73
IV.LNSS.HHZ. 2021-07-07T06:56:55.14 0.6 undecidable manual P 212 33.744 103 0.01 49
IV.GAVE.EHZ. 2021-07-07T06:56:55.42 0.6 undecidable manual P 238 35.2425 103 0.07 48
IV.MML1.EHZ. 2021-07-07T06:56:55.37 0.1 positive manual P 320 36.5412 102 -0.18 94
IV.RM33.EHZ. 2021-07-07T06:56:55.86 0.1 positive manual P 186 39.2274 101 -0.09 96
IV.NRCA.HHZ. 2021-07-07T06:56:54.90 0.3 undecidable manual S 256 12.2766 135 -0.01 76
IV.SAP2.EHZ. 2021-07-07T06:56:54.48 0.3 undecidable manual P 23 28.4493 107 0.14 73
IV.PF6.EHN. 2021-07-07T06:56:54.39 0.1 positive manual P 350 31.2465 105 -0.36 91
IV.CESI.HHE. 2021-07-07T06:56:54.94 0.3 undecidable manual P 299 33.0447 104 -0.08 73
IV.FDMO.HHZ. 2021-07-07T06:56:53.50 0.1 positive manual P 324 24.0537 112 -0.2 96
IV.SMA1.EHZ. 2021-07-07T06:56:53.96 0.1 positive manual P 167 26.2515 109 -0.06 99
IV.T1299.HNN. 2021-07-07T06:56:53.96 0.1 positive manual P 176 25.1526 110 0.1 98
IV.MF5.EHZ. 2021-07-07T06:56:53.54 0.3 undecidable manual P 49 21.4674 115 0.21 72
IV.GUMA.HHZ. 2021-07-07T06:56:53.68 0.1 positive manual P 15 23.2545 113 0.1 98
IV.CSP1.EHZ. 2021-07-07T06:56:53.77 0.1 positive manual P 350 26.0517 109 -0.22 95
IV.MMO1.EHZ. 2021-07-07T06:56:53.74 0.3 undecidable manual S 51 6.8931 152 -0.31 72
IV.NRCA.HHZ. 2021-07-07T06:56:52.19 0.3 undecidable manual P 256 12.2766 135 0.02 76
IV.MTRA.HNZ. 2021-07-07T06:56:52.50 0.3 undecidable manual P 136 15.9729 125 -0.1 74
IV.MMO1.EHZ. 2021-07-07T06:56:51.54 0.1 negative manual P 51 6.8931 152 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.4 0.002025 0.1 AML other m 2021-07-07T06:56:55.02
IV.NRCA.HNE. ML:2.4 0.0019100000000000002 0.1 AML other m 2021-07-07T06:56:55.02
IV.MTRA.EHN. ML:2.0 0.0007113675499999999 0.16 AML other m 2021-07-07T06:56:55.51
IV.MTRA.HNN. ML:2.0 0.0006968581499999999 0.16 AML other m 2021-07-07T06:56:55.51
IV.NRCA.HHN. ML:2.4 0.002085 0.1 AML other m 2021-07-07T06:56:55.52
IV.NRCA.HNN. ML:2.3 0.00181 0.1 AML other m 2021-07-07T06:56:55.52
IV.MTRA.HNE. ML:2.0 0.00082295955 0.2112 AML other m 2021-07-07T06:56:55.00
IV.MTRA.EHE. ML:2.0 0.0008277706999999999 0.2208 AML other m 2021-07-07T06:56:55.00
IV.FDMO.HHN. ML:2.0 0.0005374219500000001 0.2176 AML other m 2021-07-07T06:56:57.63
IV.MF5.EHN. ML:2.3 0.001099 0.18 AML other m 2021-07-07T06:56:57.68
IV.FDMO.HHE. ML:1.7 0.00027982224999999997 0.1408 AML other m 2021-07-07T06:56:57.58
IV.MF5.EHE. ML:2.2 0.0008485000000000001 0.28 AML other m 2021-07-07T06:56:57.63
IV.GUMA.HHE. ML:2.3 0.0012031915 0.2784 AML other m 2021-07-07T06:56:58.04
IV.SMA1.EHN. ML:2.2 0.00081927635 0.1792 AML other m 2021-07-07T06:56:58.33
IV.SMA1.EHE. ML:2.0 0.0005372449000000001 0.16 AML other m 2021-07-07T06:56:59.57
IV.CSP1.EHN. ML:2.0 0.0005485421500000001 0.3584 AML other m 2021-07-07T06:56:58.17
IV.CSP1.EHE. ML:1.8 0.0003418387 0.16 AML other m 2021-07-07T06:56:59.59
IV.GUMA.HHN. ML:2.2 0.0009445000000000001 0.4 AML other m 2021-07-07T06:57:00.52
IV.MML1.EHN. ML:1.7 0.00018099999999999998 1.86 AML other m 2021-07-07T06:57:00.05
IV.LNSS.HHE. ML:1.8 0.00023585265 0.1408 AML other m 2021-07-07T06:57:01.24
IV.LNSS.HHN. ML:1.9 0.000328 0.18 AML other m 2021-07-07T06:57:01.45
IV.GAVE.EHN. ML:1.8 0.00023051925 0.1376 AML other m 2021-07-07T06:57:01.55
IV.GAVE.EHE. ML:1.9 0.0003005 0.18 AML other m 2021-07-07T06:57:01.61
IV.MML1.EHE. ML:1.6 0.000143 1.66 AML other m 2021-07-07T06:57:02.90
IV.RM33.EHN. ML:1.9 0.000246 0.18 AML other m 2021-07-07T06:57:02.18
IV.RM33.EHE. ML:1.8 0.00019624485 0.1408 AML other m 2021-07-07T06:57:02.46
IV.GUMA.HNE. ML:2.1 0.00076716825 0.3712 AML other m 2021-07-07T06:56:58.05
IV.GUMA.HNN. ML:2.3 0.0011872699499999998 0.3392 AML other m 2021-07-07T06:57:00.59
IV.LNSS.HNN. ML:1.9 0.00031706584999999997 0.1792 AML other m 2021-07-07T06:57:01.45
IV.LNSS.HNE. ML:1.8 0.00021774035 0.1408 AML other m 2021-07-07T06:57:01.24
IV.MML1.HNN. ML:1.7 0.00016363899550000003 0.1376 AML other m 2021-07-07T06:57:01.05
IV.MML1.HNE. ML:1.7 0.0001696675 0.3488 AML other m 2021-07-07T06:57:01.17
IV.GAVE.HNE. ML:1.9 0.00031684849999999995 0.16 AML other m 2021-07-07T06:57:01.61
IV.GAVE.HNN. ML:1.7 0.00018120322500000003 0.7616 AML other m 2021-07-07T06:57:04.13
IV.RM33.HNE. ML:1.8 0.00020440134999999998 0.1504 AML other m 2021-07-07T06:57:02.46
IV.RM33.HNN. ML:2.0 0.00029259334999999997 0.24 AML other m 2021-07-07T06:57:02.18
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
Waveforms Seismic signals in miniseed + resp format Download