Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 23-05-2021 and time 00:18:15 (Italy) in region 2 km E Barete (AQ)

A magnitude ML 1.8 earthquake occured in region: 2 km E Barete (AQ), on

  • 22-05-2021 22:18:15 (UTC)
  • 23-05-2021 00:18:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4580, 13.3050 at 13 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 2 4326 5063
Cagnano Amiterno AQ 7 1369 6432
Capitignano AQ 7 665 7097
Montereale AQ 9 2581 9678
Scoppito AQ 10 3727 13405
Campotosto AQ 12 542 13947
L'Aquila AQ 14 69753 83700
Borbona RI 15 617 84317
Crognaleto TE 18 1297 85614
Tornimparte AQ 18 3187 88801
Posta RI 19 694 89495
Lucoli AQ 19 1011 90506
Antrodoco RI 19 2588 93094
Amatrice RI 19 2657 95751

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
55 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)
72 Km W of Chieti (51815 inhabitants)
74 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)
99 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 1.8 2021-05-22
22:18:15		 42.4577 13.3048 13 2021-12-29
11:12:01		 Bollettino Sismico Italiano INGV 90526021
Reviewed
Rev100 		ML 1.8 2021-05-22
22:18:15		 42.4568 13.307 13 2021-05-22
22:33:28		 Sala Sismica INGV-Roma 90387951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-22 22:18:15 ± 0.06
Latitude 42.4577 ± 0.0036
Longitude 13.3048 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90526021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.92091
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 62
Type of magnitude ML
Reference to an origin 90526021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-27 08:51:57

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 62
Type of magnitude ML
Reference to an origin 90387951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-22 22:33:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-05-22T22:18:32.74 0.6 undecidable manual P 350 98.124 91 0.53 38
IV.MC2.EHZ. 2021-05-22T22:18:32.44 0.3 undecidable manual S 349 51.2154 93 0.62 60
IV.ATCC.EHZ. 2021-05-22T22:18:32.38 0.6 undecidable manual P 326 97.125 92 0.31 41
IV.CING.HHZ. 2021-05-22T22:18:32.90 0.3 undecidable manual P 355 102.2199 91 0.05 64
IT.MMP1.HGE. 2021-05-22T22:18:31.89 0.3 undecidable manual S 243 51.1155 93 0.09 70
IV.ASSB.HHZ. 2021-05-22T22:18:30.10 0.6 undecidable manual P 321 83.5497 92 0.13 43
IV.T0110.HHZ. 2021-05-22T22:18:30.90 0.3 undecidable manual S 123 46.2204 94 0.42 66
IV.LPEL.HHZ. 2021-05-22T22:18:30.84 0.3 undecidable manual P 122 85.3479 92 0.6 58
IV.VCEL.EHZ. 2021-05-22T22:18:30.60 0.3 undecidable manual S 99 44.4222 94 0.59 62
IV.NRCA.HHZ. 2021-05-22T22:18:29.90 0.3 undecidable manual S 340 44.5221 94 -0.13 70
IV.GAVE.EHZ. 2021-05-22T22:18:29.70 0.3 undecidable manual S 308 42.4242 94 0.22 69
IV.MNTT.EHZ. 2021-05-22T22:18:28.57 0.3 undecidable manual P 19 71.0733 92 0.51 61
IV.CSP1.EHZ. 2021-05-22T22:18:27.81 0.3 undecidable manual P 353 70.8735 92 -0.2 66
IV.OFFI.HHZ. 2021-05-22T22:18:27.21 0.3 undecidable manual P 30 61.3941 93 0.65 59
IV.CERT.HHZ. 2021-05-22T22:18:27.06 0.3 undecidable manual P 205 62.3931 93 0.36 65
IV.GUMA.HHZ. 2021-05-22T22:18:27.74 0.3 undecidable manual P 2 67.1772 92 0.29 65
IV.FAGN.HHZ. 2021-05-22T22:18:27.20 0.3 undecidable manual S 133 31.2465 97 0.7 61
IV.CESX.HHZ. 2021-05-22T22:18:27.06 0.6 undecidable manual P 286 60.9945 93 0.56 41
IV.CESI.HHZ. 2021-05-22T22:18:27.55 0.3 undecidable manual P 332 68.8755 92 -0.17 66
IV.FDMO.HHZ. 2021-05-22T22:18:27.13 0.1 undecidable manual P 345 66.5778 92 -0.23 87
IV.MTRA.HNZ. 2021-05-22T22:18:26.90 0.3 undecidable manual S 13 34.0437 96 -0.34 68
IV.LNSS.HHZ. 2021-05-22T22:18:25.50 0.3 undecidable manual S 307 26.9508 99 0.13 72
IV.TERO.HHZ. 2021-05-22T22:18:25.90 0.3 undecidable manual S 53 30.5472 97 -0.42 67
IV.MMO1.EHZ. 2021-05-22T22:18:24.42 0.1 undecidable manual P 2 49.0176 94 -0.24 90
IV.FIAM.HHZ. 2021-05-22T22:18:24.90 0.3 undecidable manual S 216 26.0517 100 -0.23 70
IV.PTQR.HHZ. 2021-05-22T22:18:24.29 0.3 undecidable manual P 171 48.9177 94 -0.36 66
IT.MMP1.HGE. 2021-05-22T22:18:24.99 0.3 undecidable manual P 243 51.1155 93 0.01 71
IV.MC2.EHZ. 2021-05-22T22:18:24.90 0.3 undecidable manual P 349 51.2154 93 -0.1 69
IV.T0110.HHZ. 2021-05-22T22:18:24.02 0.3 undecidable manual P 123 46.2204 94 -0.2 68
IV.ARRO.EHZ. 2021-05-22T22:18:23.92 0.3 undecidable manual P 287 46.1205 94 -0.28 67
IV.GAVE.EHZ. 2021-05-22T22:18:23.37 0.3 undecidable manual P 308 42.4242 94 -0.28 68
IV.SMA1.EHZ. 2021-05-22T22:18:23.70 0.3 undecidable manual S 7 19.3695 107 0.32 70
IV.VCEL.EHZ. 2021-05-22T22:18:23.65 0.3 undecidable manual P 99 44.4222 94 -0.3 67
IV.GIGS.HJZ. 2021-05-22T22:18:23.50 0.3 undecidable manual S 91 21.9669 103 -0.56 66
IT.CSO1.HGZ. 2021-05-22T22:18:23.66 0.6 undecidable manual P 204 43.4232 94 -0.13 46
IV.NRCA.HHZ. 2021-05-22T22:18:23.76 0.1 undecidable manual P 340 44.5221 94 -0.2 92
IV.T1299.EHZ. 2021-05-22T22:18:23.40 0.3 undecidable manual S 355 19.6692 106 -0.08 74
IV.MTRA.HNZ. 2021-05-22T22:18:22.03 0.1 undecidable manual P 13 34.0437 96 -0.32 91
MN.AQU.HNZ. 2021-05-22T22:18:22.10 0.3 undecidable manual S 144 14.0748 119 0 75
IV.TERO.HHZ. 2021-05-22T22:18:21.47 0.1 undecidable manual P 53 30.5472 97 -0.35 91
IV.CAMP.HHZ. 2021-05-22T22:18:21.60 0.3 undecidable manual S 44 12.1767 125 -0.05 76
IV.RM33.EHZ. 2021-05-22T22:18:21.00 0.3 undecidable manual S 308 9.3795 135 -0.08 76
IV.FAGN.HHZ. 2021-05-22T22:18:21.68 0.3 undecidable manual P 133 31.2465 97 -0.25 69
IV.LNSS.HHZ. 2021-05-22T22:18:21.21 0.3 undecidable manual P 307 26.9508 99 -0.06 73
IV.T1299.EHZ. 2021-05-22T22:18:20.25 0.1 undecidable manual P 355 19.6692 106 0.07 98
IV.FIAM.HHZ. 2021-05-22T22:18:20.95 0.3 undecidable manual P 216 26.0517 100 -0.18 71
IV.SMA1.EHZ. 2021-05-22T22:18:20.17 0.1 undecidable manual P 7 19.3695 107 0.05 99
IV.GIGS.HJZ. 2021-05-22T22:18:20.26 0.1 undecidable manual P 91 21.9669 103 -0.25 94
IV.CAMP.HHZ. 2021-05-22T22:18:19.21 0.3 undecidable manual P 44 12.1767 125 0.09 74
MN.AQU.HNZ. 2021-05-22T22:18:19.34 0.1 undecidable manual P 144 14.0748 119 -0.04 100
IV.RM33.EHZ. 2021-05-22T22:18:18.91 0.1 undecidable manual P 308 9.3795 135 0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:2.0 0.00101243305 0.1536 AML other m 2021-05-22T22:18:21.17
IV.RM33.HNN. ML:2.0 0.0010873614 0.1664 AML other m 2021-05-22T22:18:21.17
IV.RM33.EHE. ML:2.0 0.0010010499 0.128 AML other m 2021-05-22T22:18:21.70
IV.RM33.HNE. ML:1.9 0.00099592385 0.128 AML other m 2021-05-22T22:18:21.70
IV.CAMP.HHN. ML:2.0 0.0008715 1.66 AML other m 2021-05-22T22:18:22.89
IV.CAMP.HHE. ML:1.8 0.0006085 0.3 AML other m 2021-05-22T22:18:22.70
IV.SMA1.EHE. ML:2.6 0.00246 0.34 AML other m 2021-05-22T22:18:24.34
IV.SMA1.EHN. ML:2.2 0.001188 0.26 AML other m 2021-05-22T22:18:24.30
IV.FIAM.HHE. ML:1.4 0.00014199999999999998 0.22 AML other m 2021-05-22T22:18:25.27
IV.FIAM.HNN. ML:1.5 0.0001657615 0.1408 AML other m 2021-05-22T22:18:25.48
IV.FIAM.HHN. ML:1.3 0.000106008025 0.1792 AML other m 2021-05-22T22:18:25.40
IV.TERO.HHE. ML:1.7 0.00022199999999999998 0.14 AML other m 2021-05-22T22:18:26.43
IV.TERO.HNE. ML:1.7 0.0002232037 0.128 AML other m 2021-05-22T22:18:26.39
IV.LNSS.HHN. ML:1.7 0.00027348300000000004 0.2048 AML other m 2021-05-22T22:18:26.52
IV.TERO.HHN. ML:1.8 0.00026700000000000004 0.06 AML other m 2021-05-22T22:18:26.71
IV.TERO.HNN. ML:1.7 0.00024736705 0.064 AML other m 2021-05-22T22:18:26.71
IV.LNSS.HHE. ML:1.8 0.00033439015 0.2816 AML other m 2021-05-22T22:18:27.87
IV.LNSS.HNE. ML:1.8 0.00031740875 0.2816 AML other m 2021-05-22T22:18:27.73
IV.FAGN.HHN. ML:2.1 0.0005989999999999999 0.28 AML other m 2021-05-22T22:18:27.82
IV.FAGN.HHE. ML:2.0 0.0004977580000000001 0.2432 AML other m 2021-05-22T22:18:28.51
IV.LNSS.HNN. ML:1.7 0.00024916 0.1792 AML other m 2021-05-22T22:18:28.90
IV.NRCA.HNE. ML:2.2 0.00054066565 0.1664 AML other m 2021-05-22T22:18:30.69
IV.NRCA.HHE. ML:2.3 0.0005745 0.18 AML other m 2021-05-22T22:18:30.69
IV.NRCA.HHN. ML:2.0 0.00031911954999999995 0.128 AML other m 2021-05-22T22:18:30.87
IV.NRCA.HNN. ML:2.0 0.00029926845000000004 0.1536 AML other m 2021-05-22T22:18:30.95
IV.GAVE.EHN. ML:1.6 0.00014015 0.24 AML other m 2021-05-22T22:18:31.53
IV.PTQR.HHE. ML:1.5 0.00007815 0.24 AML other m 2021-05-22T22:18:31.66
IV.VCEL.EHE. ML:1.9 0.00021450065 0.1408 AML other m 2021-05-22T22:18:31.94
IV.VCEL.EHN. ML:2.0 0.00027784765 0.192 AML other m 2021-05-22T22:18:32.19
IV.GAVE.EHE. ML:1.6 0.00012069072000000001 0.192 AML other m 2021-05-22T22:18:32.11
IV.ARRO.EHN. ML:1.7 0.00013450000000000002 1.32 AML other m 2021-05-22T22:18:32.91
IV.T0110.HHE. ML:1.7 0.00014503769999999998 0.2176 AML other m 2021-05-22T22:18:32.53
IV.PTQR.HHN. ML:1.3 0.000052467685 0.1792 AML other m 2021-05-22T22:18:32.84
IV.ARRO.EHE. ML:1.6 0.00010168944999999999 0.192 AML other m 2021-05-22T22:18:33.10
IV.GAVE.HNE. ML:1.7 0.00014338135499999998 0.2176 AML other m 2021-05-22T22:18:33.41
IV.T0110.HHN. ML:1.8 0.0001717912 1.7952 AML other m 2021-05-22T22:18:33.07
IV.CESX.HHN. ML:1.5 0.000062653355 0.3456 AML other m 2021-05-22T22:18:36.47
IV.CERT.HHE. ML:1.3 0.000032796610000000004 0.2816 AML other m 2021-05-22T22:18:36.81
IV.CERT.HHN. ML:1.5 0.000056800000000000005 1.44 AML other m 2021-05-22T22:18:37.16
IV.CESX.HHE. ML:1.5 0.000059343595 1.5392 AML other m 2021-05-22T22:18:37.83
IV.FDMO.HHN. ML:1.5 0.00005438953 0.2432 AML other m 2021-05-22T22:18:37.96
IV.FDMO.HHE. ML:1.6 0.0000632 0.18 AML other m 2021-05-22T22:18:38.25
IV.GUMA.HNN. ML:2.1 0.00021195935 0.2176 AML other m 2021-05-22T22:18:38.68
IV.GUMA.HHN. ML:2.0 0.00015971005 0.192 AML other m 2021-05-22T22:18:38.69
IV.GUMA.HNE. ML:2.0 0.00017852655 0.2688 AML other m 2021-05-22T22:18:39.41
IV.CSP1.EHE. ML:1.9 0.00014080969999999998 0.1152 AML other m 2021-05-22T22:18:39.58
IV.CESI.HHE. ML:1.5 0.000052950955 0.2432 AML other m 2021-05-22T22:18:39.97
IV.CESI.HHN. ML:1.8 0.0001209433 1.6544 AML other m 2021-05-22T22:18:39.87
IV.GUMA.HHE. ML:2.1 0.00022347005 0.3968 AML other m 2021-05-22T22:18:40.12
IV.CSP1.EHN. ML:2.0 0.0001783131 0.2816 AML other m 2021-05-22T22:18:40.58
IV.MNTT.EHE. ML:2.5 0.00053351965 0.1792 AML other m 2021-05-22T22:18:43.29
IV.MNTT.EHN. ML:2.2 0.000247351445 0.2176 AML other m 2021-05-22T22:18:43.29
IV.LPEL.HHE. ML:1.6 0.000050586640000000004 0.1408 AML other m 2021-05-22T22:18:43.69
IV.ASSB.HHE. ML:1.5 0.000039927935 0.256 AML other m 2021-05-22T22:18:43.81
IV.LPEL.HHN. ML:1.8 0.00006999230000000001 0.1792 AML other m 2021-05-22T22:18:43.85
IV.ASSB.HHN. ML:1.5 0.000046097199999999996 1.7824 AML other m 2021-05-22T22:18:44.90
IV.EL6.EHE. ML:1.8 0.00006154772 0.192 AML other m 2021-05-22T22:18:48.24
IV.EL6.EHN. ML:1.8 0.000071071045 0.2048 AML other m 2021-05-22T22:18:48.43
IV.ATCC.EHE. ML:1.6 0.000042180325 0.1792 AML other m 2021-05-22T22:18:48.74
IV.CING.HHN. ML:1.7 0.000044259865000000004 0.1152 AML other m 2021-05-22T22:18:48.87
IV.CING.HHE. ML:1.5 0.00003219476 0.1792 AML other m 2021-05-22T22:18:49.73
IV.ATCC.EHN. ML:1.6 0.000043968165 0.4224 AML other m 2021-05-22T22:18:52.36
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