Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 11-03-2021 and time 02:16:54 (Italy) in region 4 km W Civitella del Tronto (TE)

A magnitude ML 2.1 earthquake occured in region: 4 km W Civitella del Tronto (TE), on

  • 11-03-2021 01:16:54 (UTC)
  • 11-03-2021 02:16:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7650, 13.6180 at 22 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
Civitella del Tronto TE 4 5116 5116
Folignano AP 7 9241 14357
Campli TE 7 7209 21566
Maltignano AP 9 2401 23967
Valle Castellana TE 10 977 24944
Ascoli Piceno AP 11 49407 74351
Sant'Egidio alla Vibrata TE 11 9811 84162
Rocca Santa Maria TE 11 537 84699
Torricella Sicura TE 12 2641 87340
Ancarano TE 13 1857 89197
Teramo TE 14 54892 144089
Castel di Lama AP 14 8634 152723
Torano Nuovo TE 15 1611 154334
Sant'Omero TE 15 5243 159577
Bellante TE 16 7152 166729
Appignano del Tronto AP 16 1785 168514
Roccafluvione AP 16 2010 170524
Colli del Tronto AP 17 3668 174192
Venarotta AP 17 2066 176258
Acquasanta Terme AP 17 2916 179174
Castorano AP 17 2380 181554
Nereto TE 18 5242 186796
Cortino TE 18 656 187452
Spinetoli AP 19 7215 194667
Castellalto TE 19 7513 202180
Corropoli TE 19 5045 207225
Castignano AP 19 2796 210021
Controguerra TE 20 2436 212457
Canzano TE 20 1934 214391
Palmiano AP 20 196 214587
Offida AP 20 5058 219645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Teramo (54892 inhabitants)
49 Km NE of L'Aquila (69753 inhabitants)
52 Km NW of Montesilvano (53738 inhabitants)
59 Km NW of Pescara (121014 inhabitants)
64 Km NW of Chieti (51815 inhabitants)
78 Km E of Foligno (57155 inhabitants)
83 Km E of Terni (111501 inhabitants)
95 Km S of Ancona (100861 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 2.1 2021-03-11
01:16:54		 42.7647 13.6185 22 2021-07-12
16:55:01		 Bollettino Sismico Italiano INGV 88035391
Reviewed
Rev100 		ML 2.1 2021-03-11
01:16:54		 42.7675 13.6052 25 2021-03-11
01:26:04		 Sala Sismica INGV-Roma 87984601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-11 01:16:54 ± 0.08
Latitude 42.7647 ± 0.0027
Longitude 13.6185 ± 0.0049
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88035391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 24
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 54
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.97037
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 87984601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-11 01:26:04

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 88035391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 17:04:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SFL3.HNZ.01 2021-03-11T01:18:04.12 3.0 undecidable manual Sn 0.03 0
IV.SAMA.EHZ. 2021-03-11T01:17:34.25 3.0 undecidable manual S 0.33 0
IV.CAFE.HHZ. 2021-03-11T01:17:28.95 3.0 positive manual Pn 0.13 0
IV.MGAB.HHZ. 2021-03-11T01:17:17.75 3.0 positive manual P 3.09 0
IV.TST02.HHE. 2021-03-11T01:17:14.09 0.6 undecidable manual P 145 107.7144 97 1.68 21
IV.CESI.HHZ. 2021-03-11T01:17:14.41 0.3 undecidable manual S 295 63.8916 102 0.3 66
IV.GAVE.EHZ. 2021-03-11T01:17:13.33 0.6 undecidable manual S 262 59.5959 103 0.34 44
IV.FDMO.HHZ. 2021-03-11T01:17:11.24 0.3 undecidable manual S 305 52.6029 105 0.04 71
IV.CSP1.EHZ. 2021-03-11T01:17:10.36 0.3 undecidable manual S 317 49.4172 107 -0.03 71
IV.LNSS.HHZ. 2021-03-11T01:17:10.92 0.3 undecidable manual S 249 50.4162 106 0.28 68
IV.RM33.EHZ. 2021-03-11T01:17:09.23 0.3 undecidable manual S 229 43.5231 109 0.36 68
IV.AOI.HHE. 2021-03-11T01:17:09.61 0.3 undecidable manual P 359 87.1461 99 0.34 62
IV.VCEL.EHZ. 2021-03-11T01:17:09.46 0.3 undecidable manual S 156 44.9217 109 0.24 69
IV.LPEL.HHE. 2021-03-11T01:17:09.85 0.6 undecidable manual P 150 92.1411 98 -0.17 43
IV.ATCC.EHZ. 2021-03-11T01:17:09.89 0.3 undecidable manual P 301 92.1411 98 -0.13 64
IV.NRCA.HHZ. 2021-03-11T01:17:08.67 0.3 undecidable manual S 281 41.7249 110 0.24 70
IV.INTR.HHZ. 2021-03-11T01:17:08.84 0.3 undecidable manual P 164 86.7465 99 -0.37 62
IV.SAP2.EHZ. 2021-03-11T01:17:08.48 0.3 undecidable manual S 334 40.9257 111 0.26 69
IV.MNTP.HNZ. 2021-03-11T01:17:08.91 0.6 undecidable manual S 344 43.1235 109 0.14 47
IV.GUMA.HHZ. 2021-03-11T01:17:08.36 0.3 undecidable manual S 325 40.3263 111 0.29 69
IV.MNTT.EHZ. 2021-03-11T01:17:07.50 0.6 undecidable manual S 357 33.0447 116 1.21 32
IV.MC2.EHZ. 2021-03-11T01:17:07.45 0.3 undecidable manual S 295 38.5281 112 -0.18 70
IV.PP3.HNN. 2021-03-11T01:17:06.16 0.6 undecidable manual P 359 67.9764 101 -0.2 45
IV.T1299.HNZ. 2021-03-11T01:17:06.09 0.3 undecidable manual S 242 31.0467 118 0.28 70
IV.GIGS.HJZ. 2021-03-11T01:17:06.55 0.3 undecidable manual S 186 34.743 115 -0.16 71
IV.CESI.HHZ. 2021-03-11T01:17:05.62 0.3 undecidable manual P 295 63.8916 102 -0.11 68
IV.CAMP.HHZ. 2021-03-11T01:17:05.81 0.3 undecidable manual S 214 30.6471 119 0.09 73
IV.GAVE.EHZ. 2021-03-11T01:17:05.20 0.3 undecidable manual P 262 59.5959 103 0.11 69
IV.SMA1.EHZ. 2021-03-11T01:17:05.12 0.3 undecidable manual S 237 27.4503 122 0.13 73
IV.TRTR.HHZ. 2021-03-11T01:17:04.61 0.6 undecidable manual S 79 24.5532 125 0.27 47
IV.FAGN.HHZ. 2021-03-11T01:17:04.20 0.6 undecidable manual P 183 55.4001 104 -0.27 45
IV.MMO1.EHZ. 2021-03-11T01:17:04.86 0.3 undecidable manual S 302 28.0497 121 -0.26 70
IV.MF5.EHZ. 2021-03-11T01:17:04.67 0.3 undecidable manual S 333 27.9498 121 -0.42 68
IV.CADA.HNZ. 2021-03-11T01:17:03.57 0.3 undecidable manual P 14 49.0176 107 0.05 71
IV.OFFI.HHZ. 2021-03-11T01:17:03.53 0.3 undecidable manual S 16 19.6692 133 0.2 72
IV.CSP1.EHZ. 2021-03-11T01:17:03.22 0.3 undecidable manual P 317 49.4172 107 -0.36 67
IV.FDMO.HHZ. 2021-03-11T01:17:03.68 0.1 undecidable manual P 305 52.6029 105 -0.38 88
IV.LNSS.HHZ. 2021-03-11T01:17:03.94 0.3 undecidable manual P 249 50.4162 106 0.21 69
IV.MNTP.HNZ. 2021-03-11T01:17:02.48 0.6 undecidable manual P 344 43.1235 109 -0.17 47
IV.GUMA.HHZ. 2021-03-11T01:17:02.01 0.3 undecidable manual P 325 40.3263 111 -0.23 70
IV.VCEL.EHZ. 2021-03-11T01:17:02.93 0.3 undecidable manual P 156 44.9217 109 0.02 72
IV.NRCA.HHZ. 2021-03-11T01:17:02.30 0.1 undecidable manual P 281 41.7249 110 -0.15 94
IV.TERO.HNZ. 2021-03-11T01:17:02.51 0.3 undecidable manual S 184 15.7731 140 -0.1 74
IV.RM33.EHZ. 2021-03-11T01:17:02.78 0.3 undecidable manual P 229 43.5231 109 0.07 72
IV.MTRA.HNZ. 2021-03-11T01:17:02.80 0.3 undecidable manual S 267 18.0708 135 -0.23 72
IV.SAP2.EHZ. 2021-03-11T01:17:02.52 0.3 undecidable manual P 334 40.9257 111 0.19 70
IV.GIGS.HJZ. 2021-03-11T01:17:01.27 0.1 undecidable manual P 186 34.743 115 -0.19 94
IV.MNTT.EHZ. 2021-03-11T01:17:01.36 0.1 undecidable manual P 357 33.0447 116 0.14 95
IV.MC2.EHZ. 2021-03-11T01:17:01.89 0.1 undecidable manual P 295 38.5281 112 -0.1 95
IV.MF5.EHZ. 2021-03-11T01:17:00.30 0.1 undecidable manual P 333 27.9498 121 -0.23 95
IV.SMA1.EHZ. 2021-03-11T01:17:00.47 0.1 undecidable manual P 237 27.4503 122 0 99
IV.TRTR.HHZ. 2021-03-11T01:17:00.12 0.1 undecidable manual P 79 24.5532 125 0.03 99
IV.CAMP.HHZ. 2021-03-11T01:17:00.92 0.1 undecidable manual P 214 30.6471 119 0.03 98
IV.MMO1.EHZ. 2021-03-11T01:17:00.22 0.1 undecidable manual P 302 28.0497 121 -0.32 93
IV.T1299.HNZ. 2021-03-11T01:17:00.99 0.1 undecidable manual P 242 31.0467 118 0.05 98
IV.MTRA.HNZ. 2021-03-11T01:16:59.12 0.1 undecidable manual P 267 18.0708 135 -0.22 97
IV.OFFI.HHZ. 2021-03-11T01:16:59.44 0.1 undecidable manual P 16 19.6692 133 -0.07 100
IV.TERO.HNZ. 2021-03-11T01:16:58.95 0.1 undecidable manual P 184 15.7731 140 -0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:2.5 0.00174 0.06 AML other m 2021-03-11T01:17:02.59
IV.TERO.HNN. ML:2.6 0.0021000000000000003 0.06 AML other m 2021-03-11T01:17:02.59
IV.TERO.HNE. ML:2.3 0.001135 0.18 AML other m 2021-03-11T01:17:02.66
IV.TERO.HHE. ML:2.3 0.0012469999999999998 0.18 AML other m 2021-03-11T01:17:02.66
IV.MTRA.HNE. ML:2.3 0.00113 0.38 AML other m 2021-03-11T01:17:03.09
IV.MTRA.EHE. ML:2.3 0.00115 0.36 AML other m 2021-03-11T01:17:03.10
IV.MTRA.HNN. ML:2.3 0.0010175000000000002 1.08 AML other m 2021-03-11T01:17:03.01
IV.MTRA.EHN. ML:2.3 0.0010249999999999999 1.06 AML other m 2021-03-11T01:17:03.02
IV.SMA1.EHN. ML:2.0 0.000407 0.5 AML other m 2021-03-11T01:17:05.36
IV.MF5.EHN. ML:2.1 0.0005290000000000001 0.16 AML other m 2021-03-11T01:17:05.33
IV.MF5.EHE. ML:2.1 0.0005945 0.44 AML other m 2021-03-11T01:17:05.26
IV.CAMP.HHN. ML:1.4 0.00009279999999999999 0.32 AML other m 2021-03-11T01:17:06.37
IV.CAMP.HHE. ML:1.5 0.0001175 0.76 AML other m 2021-03-11T01:17:06.27
IV.SMA1.EHE. ML:1.9 0.0003345 0.32 AML other m 2021-03-11T01:17:07.41
IV.MNTT.EHN. ML:2.2 0.0005935000000000001 0.6 AML other m 2021-03-11T01:17:08.61
IV.NRCA.HHN. ML:2.6 0.001325 0.12 AML other m 2021-03-11T01:17:09.13
IV.NRCA.HNN. ML:2.6 0.00125 0.12 AML other m 2021-03-11T01:17:09.13
IV.TRTR.HHN. ML:2.3 0.0009755 1.34 AML other m 2021-03-11T01:17:09.20
IV.SAP2.EHN. ML:2.7 0.0016400000000000002 0.38 AML other m 2021-03-11T01:17:09.20
IV.SAP2.EHE. ML:2.0 0.00031800000000000003 0.8 AML other m 2021-03-11T01:17:09.28
IV.MNTT.EHE. ML:2.1 0.000546 0.5 AML other m 2021-03-11T01:17:09.63
IV.NRCA.HHE. ML:2.3 0.0006225 0.12 AML other m 2021-03-11T01:17:09.60
IV.NRCA.HNE. ML:2.2 0.0005435000000000001 0.12 AML other m 2021-03-11T01:17:09.54
IV.RM33.EHE. ML:1.6 0.00011829999999999999 0.42 AML other m 2021-03-11T01:17:10.11
IV.RM33.EHN. ML:1.7 0.000126 0.88 AML other m 2021-03-11T01:17:10.55
IV.GUMA.HHE. ML:2.0 0.000272 0.2 AML other m 2021-03-11T01:17:11.32
IV.FDMO.HHN. ML:1.6 0.00008410000000000001 0.2 AML other m 2021-03-11T01:17:11.75
IV.LNSS.HHN. ML:2.0 0.000249 1.18 AML other m 2021-03-11T01:17:12.91
IV.TRTR.HHE. ML:2.2 0.000785 0.96 AML other m 2021-03-11T01:17:12.60
IV.LNSS.HHE. ML:1.8 0.0001595 1.1 AML other m 2021-03-11T01:17:12.71
IV.FDMO.HHE. ML:1.6 0.0000818 0.54 AML other m 2021-03-11T01:17:12.73
IV.GUMA.HHN. ML:1.9 0.000243 0.98 AML other m 2021-03-11T01:17:13.28
IV.GAVE.EHN. ML:2.0 0.00019250000000000002 0.2 AML other m 2021-03-11T01:17:14.87
IV.CESI.HHN. ML:1.9 0.000136 0.18 AML other m 2021-03-11T01:17:15.33
IV.CESI.HHE. ML:1.7 0.00008315 0.68 AML other m 2021-03-11T01:17:15.05
IV.GAVE.EHE. ML:1.9 0.000165 1.04 AML other m 2021-03-11T01:17:15.63
IV.FAGN.HHE. ML:1.7 0.00011655000000000001 0.4 AML other m 2021-03-11T01:17:22.40
IV.FAGN.HHN. ML:1.6 0.00009295000000000001 0.44 AML other m 2021-03-11T01:17:22.62
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