Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 12-02-2021 and time 18:13:31 (Italy) in region 2 km NE Barete (AQ)

A magnitude ML 1.7 earthquake occured in region: 2 km NE Barete (AQ), on

  • 12-02-2021 17:13:31 (UTC)
  • 12-02-2021 18:13:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4640, 13.2950 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.

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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
Barete AQ 2 737 737
Pizzoli AQ 3 4326 5063
Cagnano Amiterno AQ 6 1369 6432
Capitignano AQ 6 665 7097
Montereale AQ 8 2581 9678
Scoppito AQ 11 3727 13405
Campotosto AQ 12 542 13947
Borbona RI 14 617 14564
L'Aquila AQ 15 69753 84317
Posta RI 18 694 85011
Crognaleto TE 18 1297 86308
Antrodoco RI 18 2588 88896
Amatrice RI 19 2657 91553
Tornimparte AQ 19 3187 94740
Lucoli AQ 19 1011 95751
Micigliano RI 20 127 95878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
73 Km W of Chieti (51815 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
75 Km W of Pescara (121014 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
96 Km NE of Velletri (53303 inhabitants)
98 Km E of Viterbo (67173 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 1.7 2021-02-12
17:13:31		 42.4638 13.2953 14 2021-07-12
16:54:59		 Bollettino Sismico Italiano INGV 87236511
Reviewed
Rev100 		ML 1.7 2021-02-12
17:13:30		 42.4657 13.2967 15 2021-02-12
17:21:39		 Sala Sismica INGV-Roma 87083341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-12 17:13:31 ± 0.06
Latitude 42.4638 ± 0.0036
Longitude 13.2953 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87236511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 385
Semi-minor axis of confidence ellipse (meter) 123
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 343
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) 73
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63222
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 87236511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-15 11:07:06

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 87083341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-12 17:21:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2021-02-12T17:14:12.54 3.0 undecidable manual S 1.73 0
IV.CSP1.EHZ. 2021-02-12T17:13:43.44 0.6 undecidable manual P 354 70.0743 93 0.13 45
IV.MOMA.HNZ. 2021-02-12T17:13:43.56 1.0 undecidable manual P 303 70.1742 93 0.22 22
IV.MTRA.EHZ. 2021-02-12T17:13:42.20 0.3 undecidable manual S 14 33.5442 98 -0.35 69
IV.FDMO.HHZ. 2021-02-12T17:13:42.67 0.6 undecidable manual P 345 65.7897 93 0.02 46
IV.MF5.EHZ. 2021-02-12T17:13:42.24 0.3 undecidable manual P 13 59.6958 94 0.53 62
IV.TERO.HHZ. 2021-02-12T17:13:41.50 0.6 undecidable manual S 55 30.747 99 -0.32 46
IV.LNSS.HHZ. 2021-02-12T17:13:40.20 0.3 undecidable manual S 307 25.9518 102 -0.35 70
IV.MC2.EHZ. 2021-02-12T17:13:40.62 0.6 undecidable manual P 350 50.4162 94 0.33 44
IV.MMO1.EHZ. 2021-02-12T17:13:40.11 0.3 undecidable manual P 3 48.4182 95 0.13 70
IV.ARRO.EHZ. 2021-02-12T17:13:39.36 0.3 undecidable manual P 287 45.1215 95 -0.13 70
IV.VCEL.EHN. 2021-02-12T17:13:39.64 0.6 undecidable manual P 100 45.3213 95 0.14 47
IV.GIGS.HJZ. 2021-02-12T17:13:39.40 0.6 undecidable manual S 93 22.755 106 -0.32 46
IV.NRCA.HHZ. 2021-02-12T17:13:39.14 0.1 undecidable manual P 340 43.623 95 -0.1 95
IV.SMA1.EHZ. 2021-02-12T17:13:38.80 0.3 undecidable manual S 10 18.7701 111 0.08 74
IV.GAVE.EHZ. 2021-02-12T17:13:38.81 0.3 undecidable manual P 308 41.4252 96 -0.1 71
IV.TERO.HHZ. 2021-02-12T17:13:37.16 0.1 undecidable manual P 55 30.747 99 -0.12 96
IV.FAGN.HHZ. 2021-02-12T17:13:37.82 0.6 undecidable manual P 133 32.2455 99 0.31 47
MN.AQU.HNZ. 2021-02-12T17:13:37.79 0.6 undecidable manual S 144 15.1737 120 -0.05 50
IV.CAMP.HHZ. 2021-02-12T17:13:37.20 0.3 undecidable manual S 49 12.2766 128 0 76
IV.MTRA.EHZ. 2021-02-12T17:13:37.52 0.1 undecidable manual P 14 33.5442 98 -0.18 95
IV.RM33.EHZ. 2021-02-12T17:13:36.20 0.3 undecidable manual S 307 8.2806 142 -0.25 74
IV.LNSS.HHZ. 2021-02-12T17:13:36.62 0.1 positive manual P 307 25.9518 102 0.07 98
IV.FIAM.HHZ. 2021-02-12T17:13:36.53 0.1 undecidable manual P 214 26.1516 102 -0.06 98
IV.GIGS.HJZ. 2021-02-12T17:13:35.96 0.1 positive manual P 93 22.755 106 -0.11 97
MN.AQU.HNZ. 2021-02-12T17:13:35.16 0.6 undecidable manual P 144 15.1737 120 0.17 49
IV.T1299.HNZ. 2021-02-12T17:13:35.67 0.3 undecidable manual P 357 18.9699 111 0.16 73
IV.SMA1.EHZ. 2021-02-12T17:13:35.64 0.1 positive manual P 10 18.7701 111 0.15 97
IV.CAMP.HHZ. 2021-02-12T17:13:34.77 0.1 positive manual P 49 12.2766 128 0.15 98
IV.RM33.EHZ. 2021-02-12T17:13:34.27 0.1 negative manual P 307 8.2806 142 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNE. ML:1.7 0.000547 0.22 AML other m 2021-02-12T17:13:36.44
IV.RM33.EHE. ML:1.7 0.0005880000000000001 0.22 AML other m 2021-02-12T17:13:36.44
IV.RM33.EHN. ML:1.7 0.0005135000000000001 1.32 AML other m 2021-02-12T17:13:36.32
IV.CAMP.HHE. ML:1.2 0.0001375 0.22 AML other m 2021-02-12T17:13:37.29
IV.RM33.HNN. ML:1.8 0.0005994999999999999 1.06 AML other m 2021-02-12T17:13:37.03
IV.CAMP.HHN. ML:1.2 0.00016700000000000002 0.48 AML other m 2021-02-12T17:13:38.25
IV.SMA1.EHN. ML:1.8 0.000406 0.76 AML other m 2021-02-12T17:13:39.50
IV.SMA1.EHE. ML:1.8 0.0004415 0.66 AML other m 2021-02-12T17:13:40.60
IV.LNSS.HHE. ML:1.8 0.0003265 1.06 AML other m 2021-02-12T17:13:41.31
IV.LNSS.HHN. ML:1.8 0.0003775 1.18 AML other m 2021-02-12T17:13:41.66
IV.TERO.HHE. ML:1.4 0.00010334999999999999 0.66 AML other m 2021-02-12T17:13:41.33
IV.TERO.HHN. ML:1.4 0.00010200000000000001 0.58 AML other m 2021-02-12T17:13:42.66
IV.MTRA.HNE. ML:2.2 0.0006485000000000001 0.42 AML other m 2021-02-12T17:13:42.40
IV.MTRA.EHE. ML:2.2 0.0006525000000000001 0.42 AML other m 2021-02-12T17:13:42.40
IV.MTRA.EHN. ML:1.9 0.00032399999999999996 0.94 AML other m 2021-02-12T17:13:42.87
IV.MTRA.HNN. ML:1.9 0.000324 0.22 AML other m 2021-02-12T17:13:42.87
IV.FAGN.HHE. ML:1.6 0.000161 0.42 AML other m 2021-02-12T17:13:45.47
IV.NRCA.HHE. ML:2.0 0.000265 0.14 AML other m 2021-02-12T17:13:45.89
IV.GAVE.EHN. ML:1.5 0.00010795 1.44 AML other m 2021-02-12T17:13:47.09
IV.NRCA.HHN. ML:1.9 0.00023050000000000002 0.12 AML other m 2021-02-12T17:13:47.18
IV.FAGN.HHN. ML:1.5 0.000147 1.32 AML other m 2021-02-12T17:13:47.90
IV.GAVE.EHE. ML:1.7 0.00015050000000000003 0.2 AML other m 2021-02-12T17:13:48.05
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