Earthquake with magnitude of ML 1.4 on date 18-05-2021 and time 16:03:40 (UTC) in region 3 km N Barete (AQ)

A magnitude ML 1.4 earthquake occured in region: 3 km N Barete (AQ), on

  • 18-05-2021 16:03:40 (UTC)
  • 18-05-2021 18:03:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.482, 13.282 at 12 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.

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 3 737 737
Capitignano AQ 5 665 1402
Pizzoli AQ 5 4326 5728
Cagnano Amiterno AQ 5 1369 7097
Montereale AQ 6 2581 9678
Campotosto AQ 11 542 10220
Scoppito AQ 12 3727 13947
Borbona RI 13 617 14564
Posta RI 16 694 15258
Amatrice RI 17 2657 17915
L'Aquila AQ 17 69753 87668
Crognaleto TE 18 1297 88965
Antrodoco RI 18 2588 91553
Cittareale RI 18 482 92035
Micigliano RI 19 127 92162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
74 Km W of Chieti (51815 inhabitants)
77 Km W of Pescara (121014 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
98 Km NE of Velletri (53303 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 1.4 2021-05-18
16:03:40
42.482 13.2818 12 2021-12-29
11:12:16
Bollettino Sismico Italiano INGV 93562261
Reviewed
Rev100
ML 1.4 2021-05-18
16:03:40
42.4923 13.2833 12 2021-05-18
16:09:15
Sala Sismica INGV-Roma 90235541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-18 16:03:40 ± 0.1
Latitude 42.4820 ± 0.0054
Longitude 13.2818 ± 0.0073
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93562261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 663
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 660
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.61244
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 93562261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-02 14:14:12

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 90235541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-18 16:09:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IT.FIE.HGZ. 2021-05-18T16:04:31.30 3.0 undecidable manual Sg 7.05 0
IV.MTGR.HHZ. 2021-05-18T16:04:29.00 3.0 negative manual Pn -9.99 0
IV.SEI.HHZ. 2021-05-18T16:04:29.99 3.0 undecidable manual Sg 1.36 0
IV.ZEN8.EHZ. 2021-05-18T16:04:27.12 3.0 undecidable manual Pn 0.25 0
IV.BRSN.HNZ. 2021-05-18T16:04:24.42 3.0 undecidable manual Sn -4.5 0
IV.MSSA.HHZ. 2021-05-18T16:04:24.53 3.0 undecidable manual Pg 4.87 0
IV.MOCL.EHZ. 2021-05-18T16:04:22.86 3.0 undecidable manual Sn -6.48 0
IV.FIR.HHZ. 2021-05-18T16:04:16.14 3.0 undecidable manual Sn -7.9 0
IV.PP3.EHZ. 2021-05-18T16:04:15.16 3.0 undecidable manual Sg 5.02 0
IV.SEI.HHZ. 2021-05-18T16:04:07.01 3.0 negative manual Pg 2.27 0
IV.ARVD.HHZ. 2021-05-18T16:04:05.11 3.0 undecidable manual Sn -3.53 0
IV.PAOL.HHZ. 2021-05-18T16:04:05.01 3.0 undecidable manual Pg 0.62 0
IV.TREM.HHZ. 2021-05-18T16:04:03.92 3.0 positive manual Pn -2.62 0
IV.CPGN.EHZ. 2021-05-18T16:04:01.78 3.0 undecidable manual Pg 3.86 0
IV.PTRJ.HNZ. 2021-05-18T16:03:59.35 3.0 undecidable manual Pn -1.73 0
IV.PP3.EHZ. 2021-05-18T16:03:57.76 3.0 negative manual Pg 3.41 0
IV.MC2.EHZ. 2021-05-18T16:03:57.08 3.0 undecidable manual Sn 0.45 0
IV.T0110.HHZ. 2021-05-18T16:03:56.43 0.3 undecidable manual S 124 0.4443 92 0.46 63
IV.NRCA.HHZ. 2021-05-18T16:03:53.82 0.3 undecidable manual S 341 0.3723 93 -0.02 71
IV.PESA.HHZ. 2021-05-18T16:03:52.71 3.0 undecidable manual Pn -6.74 0
IV.CSP1.EHZ. 2021-05-18T16:03:52.35 0.3 undecidable manual P 355 0.6124 91 0.11 66
IV.FAGN.HHZ. 2021-05-18T16:03:52.83 0.6 undecidable manual S 134 0.3103 93 0.81 38
IV.MTRA.EHE. 2021-05-18T16:03:51.20 0.6 undecidable manual S 17 0.2869 94 -0.13 47
IV.MF5.EHZ. 2021-05-18T16:03:51.08 3.0 negative manual Pg 1.87 0
IV.TERO.HHZ. 2021-05-18T16:03:50.56 0.3 undecidable manual S 59 0.2761 94 -0.43 67
IV.LNSS.HHZ. 2021-05-18T16:03:49.17 0.3 undecidable manual S 304 0.2149 97 -0.02 72
IV.T0110.HHZ. 2021-05-18T16:03:49.27 0.1 undecidable manual P 124 0.4443 92 -0.1 91
IV.GIGS.HHN. 2021-05-18T16:03:48.81 0.6 undecidable manual S 98 0.2167 96 -0.43 45
IV.SMA1.EHZ. 2021-05-18T16:03:47.94 0.3 undecidable manual S 15 0.1538 105 0.54 64
IV.FAGN.HHZ. 2021-05-18T16:03:47.44 0.6 undecidable manual P 134 0.3103 93 0.35 44
MN.AQU.HNN. 2021-05-18T16:03:47.40 0.6 undecidable manual S 145 0.1574 104 -0.1 48
IV.NRCA.HHZ. 2021-05-18T16:03:47.94 0.1 undecidable manual P 341 0.3723 93 -0.2 90
IV.T1299.HNN. 2021-05-18T16:03:47.73 0.6 undecidable manual S 0 0.152 105 0.37 45
IV.CAMP.HHE. 2021-05-18T16:03:46.31 0.6 undecidable manual S 60 0.1079 120 0.15 48
IV.MTRA.EHE. 2021-05-18T16:03:46.50 0.1 undecidable manual P 17 0.2869 94 -0.19 93
IV.TERO.HHZ. 2021-05-18T16:03:46.19 0.1 undecidable manual P 59 0.2761 94 -0.3 91
IV.GIGS.HHN. 2021-05-18T16:03:45.20 0.1 undecidable manual P 98 0.2167 96 -0.28 92
IV.LNSS.HHZ. 2021-05-18T16:03:45.36 0.1 undecidable manual P 304 0.2149 97 -0.1 94
IV.RM33.EHZ. 2021-05-18T16:03:44.94 0.3 undecidable manual S 299 0.0567 145 -0.09 72
IV.SMA1.EHZ. 2021-05-18T16:03:44.56 0.1 undecidable manual P 15 0.1538 105 0.14 95
MN.AQU.HNN. 2021-05-18T16:03:44.24 0.3 undecidable manual P 145 0.1574 104 -0.24 70
IV.T1299.HNN. 2021-05-18T16:03:44.55 0.1 undecidable manual P 0 0.152 105 0.15 95
IV.CAMP.HHE. 2021-05-18T16:03:43.85 0.1 undecidable manual P 60 0.1079 120 0.15 96
IV.RM33.EHZ. 2021-05-18T16:03:43.12 0.1 negative manual P 299 0.0567 145 0.07 100
IV.RMP.HHZ. 2021-05-18T16:03:43.96 3.0 negative manual P -1.86 0
IT.RMVT.HGZ. 2021-05-18T16:03:42.81 3.0 undecidable manual P -1.6 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.4 0.0003575 0.66 AML other m 2021-05-18T16:03:45.02
IV.RM33.EHN. ML:1.6 0.000472 0.14 AML other m 2021-05-18T16:03:45.01
IV.SMA1.EHE. ML:1.9 0.000747 0.34 AML other m 2021-05-18T16:03:48.44
IV.SMA1.EHN. ML:1.7 0.0004245 0.28 AML other m 2021-05-18T16:03:48.45
IV.LNSS.HHE. ML:1.2 0.0001038 0.5 AML other m 2021-05-18T16:03:49.60
IV.LNSS.HHN. ML:1.3 0.000111 0.2 AML other m 2021-05-18T16:03:49.74
IV.NRCA.HHN. ML:1.4 7.755E-5 0.14 AML other m 2021-05-18T16:03:54.62
IV.NRCA.HHE. ML:1.5 0.0001061 1.88 AML other m 2021-05-18T16:03:55.96
IV.FAGN.HHE. ML:1.6 0.000161 0.52 AML other m 2021-05-18T16:03:57.83
IV.FAGN.HHN. ML:1.4 9.295E-5 0.38 AML other m 2021-05-18T16:03:58.26
IV.T0110.HHE. ML:1.4 6.44E-5 1.02 AML other m 2021-05-18T16:03:59.33
IV.T0110.HHN. ML:1.3 5.545E-5 0.3 AML other m 2021-05-18T16:04:00.35
IV.GAVE.EHN. ML:1.4 8.16E-5 0.1 AML other m 2021-05-18T16:04:02.44
IV.GAVE.EHE. ML:1.1 4.6815E-5 0.42 AML other m 2021-05-18T16:04:03.21
IV.FIR.HHE. ML:3.6 0.00107 1.66 AML other m 2021-05-18T16:04:51.11
IV.FIR.HHN. ML:3.2 0.0003795 0.1 AML other m 2021-05-18T16:04:51.34
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