Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 18-08-2022 and time 04:44:45 (Italy) in region 3 km SW Amatrice (RI)

A magnitude ML 1.9 earthquake occured in region: 3 km SW Amatrice (RI), on

  • 18-08-2022 02:44:45 (UTC)
  • 18-08-2022 04:44:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6140, 13.2580 at 11 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
Amatrice RI 3 2657 2657
Cittareale RI 8 482 3139
Accumoli RI 9 667 3806
Montereale AQ 10 2581 6387
Capitignano AQ 11 665 7052
Campotosto AQ 11 542 7594
Borbona RI 15 617 8211
Posta RI 17 694 8905
Cagnano Amiterno AQ 17 1369 10274
Arquata del Tronto AP 18 1178 11452
Barete AQ 18 737 12189
Crognaleto TE 20 1297 13486
Pizzoli AQ 20 4326 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
97 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 1.9 2022-08-18
02:44:45		 42.6135 13.2582 11 2023-01-31
19:03:56		 Bollettino Sismico Italiano INGV 111968171
Reviewed
Rev100 		ML 1.9 2022-08-18
02:44:45		 42.6158 13.2652 11 2022-08-18
02:52:16		 Sala Sismica INGV-Roma 108664221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-18 02:44:45 ± 0.09
Latitude 42.6135 ± 0.0045
Longitude 13.2582 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 111968171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 539
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02163
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 65
Type of magnitude ML
Reference to an origin 111968171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-28 16:40:25

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 65
Type of magnitude ML
Reference to an origin 108664221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-18 02:52:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIU.EHZ. 2022-08-18T02:45:53.42 3.0 undecidable manual Sn -0.34 0
IV.SFI.EHZ. 2022-08-18T02:45:39.30 3.0 undecidable manual Sg 3.81 0
IV.ATMI.HHZ. 2022-08-18T02:45:06.84 0.3 undecidable manual P 315 113.3976 50 2.18 21
IV.SAP2.EHE. 2022-08-18T02:45:03.98 0.3 undecidable manual S 12 54.8007 50 1.09 50
IV.SSFR.HHZ. 2022-08-18T02:45:02.98 0.3 undecidable manual P 337 99.123 50 0.52 59
IV.ARVD.HHZ. 2022-08-18T02:45:02.92 0.3 undecidable manual P 345 101.4207 50 0.1 64
IV.MGAB.HNZ. 2022-08-18T02:45:02.97 0.3 undecidable manual P 290 99.0231 50 0.52 59
IV.MF5.EHN. 2022-08-18T02:45:01.03 0.6 undecidable manual S 21 44.622 50 0.86 38
IV.CING.HHZ. 2022-08-18T02:45:00.36 0.3 undecidable manual P 357 84.6486 50 0.12 66
IV.ATCC.EHZ. 2022-08-18T02:44:59.63 0.3 undecidable manual P 322 80.8635 50 -0.03 68
IV.ARRO.EHZ. 2022-08-18T02:44:59.02 0.6 undecidable manual S 265 40.4262 50 -0.02 49
IV.EL6.EHZ. 2022-08-18T02:44:59.47 0.3 undecidable manual P 351 80.4639 50 -0.11 67
IV.SNTG.HHZ. 2022-08-18T02:44:58.88 0.3 undecidable manual P 340 75.6687 50 0.03 68
IV.MC2.EHZ. 2022-08-18T02:44:57.59 0.6 undecidable manual S 350 33.5442 50 0.38 46
IV.ASSB.HHZ. 2022-08-18T02:44:57.49 0.3 undecidable manual P 315 68.1762 50 -0.2 67
IV.TRTR.HHZ. 2022-08-18T02:44:57.27 0.3 undecidable manual P 68 57.5979 50 1.2 47
IV.MMO1.EHZ. 2022-08-18T02:44:56.65 0.6 undecidable manual S 10 32.2455 50 -0.2 48
IV.MNTT.EHZ. 2022-08-18T02:44:56.70 0.6 undecidable manual P 29 56.7987 50 0.76 39
IV.T0110.HHZ. 2022-08-18T02:44:56.47 0.1 undecidable manual P 135 60.0954 50 0.02 94
IV.SAP2.EHE. 2022-08-18T02:44:56.18 0.3 undecidable manual P 12 54.8007 50 0.55 63
IV.MOMA.HHZ. 2022-08-18T02:44:56.24 0.3 undecidable manual P 291 59.8956 50 -0.18 68
IV.GAVE.EHZ. 2022-08-18T02:44:56.28 0.6 undecidable manual S 287 30.9468 50 -0.24 47
IV.GIGS.HHZ. 2022-08-18T02:44:56.21 0.3 undecidable manual S 125 31.2465 50 -0.39 69
7F.SIB2.EHE. 2022-08-18T02:44:56.18 0.6 undecidable manual S 7 31.0467 50 -0.36 46
IV.VCEL.EHN. 2022-08-18T02:44:55.86 0.1 undecidable manual P 117 53.502 50 0.44 87
IV.TERO.HHZ. 2022-08-18T02:44:55.24 0.6 undecidable manual S 88 28.2495 50 -0.56 44
IV.GUMA.HHZ. 2022-08-18T02:44:55.08 0.1 positive manual P 7 50.2164 50 0.15 93
7F.SIB3.EHZ. 2022-08-18T02:44:55.60 0.6 undecidable manual S 2 29.0487 50 -0.41 46
IV.CSP1.EHZ. 2022-08-18T02:44:55.23 0.3 undecidable manual P 355 53.2023 50 -0.16 69
IV.CESI.HHZ. 2022-08-18T02:44:55.22 0.1 undecidable manual P 327 52.1034 50 0.01 96
IV.CESX.HHZ. 2022-08-18T02:44:55.35 0.3 undecidable manual P 270 54.8007 50 -0.28 67
IV.MF5.EHN. 2022-08-18T02:44:54.32 0.1 positive manual P 21 44.622 50 0.25 92
IV.FDMO.HHZ. 2022-08-18T02:44:54.49 0.3 undecidable manual P 344 48.9177 50 -0.24 69
IV.NRCA.HHZ. 2022-08-18T02:44:54.99 0.6 undecidable manual S 334 27.0507 50 -0.5 45
IV.FIAM.HHZ. 2022-08-18T02:44:53.36 0.3 undecidable manual P 197 40.0266 50 0.01 73
IV.ARRO.EHZ. 2022-08-18T02:44:53.20 0.1 undecidable manual P 265 40.4262 50 -0.21 94
IV.CAMP.HHZ. 2022-08-18T02:44:52.05 0.6 undecidable manual S 125 15.0738 126 -0.08 50
IV.ASCOL.EHN. 2022-08-18T02:44:52.41 0.1 undecidable manual P 46 37.7289 50 -0.59 85
IV.MTRA.EHZ. 2022-08-18T02:44:52.87 0.6 undecidable manual S 35 19.4694 119 -0.57 44
MN.AQU.HNN. 2022-08-18T02:44:52.24 0.6 undecidable manual P 157 31.1466 50 0.25 47
IV.MC2.EHZ. 2022-08-18T02:44:52.26 0.1 positive manual P 350 33.5442 50 -0.09 97
IV.GAVE.EHZ. 2022-08-18T02:44:51.78 0.1 positive manual P 287 30.9468 50 -0.18 96
IV.RM33.EHZ. 2022-08-18T02:44:51.42 0.6 undecidable manual S 197 12.1767 131 0.08 51
IV.NRCA.HHZ. 2022-08-18T02:44:51.14 0.1 positive manual P 334 27.0507 50 -0.22 96
IV.GIGS.HHZ. 2022-08-18T02:44:51.84 0.1 negative manual P 125 31.2465 50 -0.17 96
7F.SIB2.EHE. 2022-08-18T02:44:51.67 0.1 positive manual P 7 31.0467 50 -0.3 94
IV.TERO.HHZ. 2022-08-18T02:44:51.28 0.1 positive manual P 88 28.2495 50 -0.26 95
IV.MMO1.EHZ. 2022-08-18T02:44:51.98 0.1 positive manual P 10 32.2455 50 -0.17 96
7F.SIB3.EHZ. 2022-08-18T02:44:51.43 0.3 undecidable manual P 2 29.0487 50 -0.23 71
IV.MTRA.EHZ. 2022-08-18T02:44:49.98 0.1 positive manual P 35 19.4694 119 -0.2 97
IV.RM33.EHZ. 2022-08-18T02:44:49.22 0.1 positive manual P 197 12.1767 131 0.25 98
IV.CAMP.HHZ. 2022-08-18T02:44:49.53 0.1 negative manual P 125 15.0738 126 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:2.3 0.0023833785 0.1296 AML other m 2022-08-18T02:44:51.52
IV.RM33.EHN. ML:2.3 0.002378667 0.1392 AML other m 2022-08-18T02:44:51.52
IV.RM33.HNE. ML:2.4 0.0026105670000000003 0.2096 AML other m 2022-08-18T02:44:52.17
IV.RM33.EHE. ML:2.4 0.0025281375 0.2 AML other m 2022-08-18T02:44:52.18
IV.MTRA.HNN. ML:2.4 0.0020350000000000004 0.28 AML other m 2022-08-18T02:44:53.18
IV.MTRA.EHN. ML:2.4 0.00202 0.28 AML other m 2022-08-18T02:44:53.19
IV.CAMP.HHN. ML:1.7 0.00044608165 0.2592 AML other m 2022-08-18T02:44:53.28
IV.MTRA.HNE. ML:2.6 0.0029050000000000005 0.24 AML other m 2022-08-18T02:44:53.84
IV.MTRA.EHE. ML:2.6 0.002945 0.22 AML other m 2022-08-18T02:44:53.84
IV.CAMP.HHE. ML:1.6 0.00034594064999999994 0.3408 AML other m 2022-08-18T02:44:55.05
IV.TERO.HHE. ML:2.0 0.00053922215 0.16 AML other m 2022-08-18T02:44:55.44
IV.TERO.HNE. ML:2.1 0.00061574295 0.1696 AML other m 2022-08-18T02:44:55.45
IV.TERO.HNN. ML:2.0 0.0005096267 0.1312 AML other m 2022-08-18T02:44:55.72
IV.GIGS.HHN. ML:1.7 0.00021550000000000003 0.08 AML other m 2022-08-18T02:44:56.46
IV.GIGS.HHE. ML:1.4 0.00011779780000000001 0.12 AML other m 2022-08-18T02:44:56.53
IV.GAVE.EHN. ML:2.2 0.0007208132499999999 0.1408 AML other m 2022-08-18T02:44:56.94
IV.MMO1.EHE. ML:1.9 0.0003594411 0.1392 AML other m 2022-08-18T02:44:56.89
IV.GAVE.HNE. ML:2.4 0.0011149301000000001 0.1696 AML other m 2022-08-18T02:44:56.90
IV.GAVE.EHE. ML:2.4 0.0010565 0.16 AML other m 2022-08-18T02:44:56.91
IV.MMO1.EHN. ML:2.0 0.0005265691999999999 0.1792 AML other m 2022-08-18T02:44:56.97
IV.GAVE.HNN. ML:1.7 0.00023391784999999998 0.2688 AML other m 2022-08-18T02:44:57.02
IV.TERO.HHN. ML:2.0 0.0004961828999999999 0.2592 AML other m 2022-08-18T02:44:58.34
IV.FIAM.HHE. ML:1.6 0.00015102009999999998 0.16 AML other m 2022-08-18T02:44:59.64
IV.MC2.EHE. ML:2.0 0.0004582613 0.2608 AML other m 2022-08-18T02:45:00.22
IV.FIAM.HHN. ML:1.6 0.0001287297 0.1408 AML other m 2022-08-18T02:45:00.15
IV.ARRO.EHE. ML:1.8 0.0001915 0.18 AML other m 2022-08-18T02:45:00.28
IV.MC2.EHN. ML:2.1 0.0005570713499999999 0.2592 AML other m 2022-08-18T02:45:01.45
IV.ARRO.EHN. ML:1.8 0.00023841879999999998 0.12 AML other m 2022-08-18T02:45:01.76
IV.GUMA.HNE. ML:2.3 0.0004945 0.32 AML other m 2022-08-18T02:45:02.83
IV.GUMA.HHE. ML:2.4 0.0007030000000000001 1.68 AML other m 2022-08-18T02:45:02.00
IV.GUMA.HNN. ML:2.3 0.00049015695 1.6992 AML other m 2022-08-18T02:45:03.02
IV.GUMA.HHN. ML:2.2 0.00043100000000000007 0.5 AML other m 2022-08-18T02:45:03.30
IV.FDMO.HHE. ML:1.4 0.000076208525 0.12 AML other m 2022-08-18T02:45:03.38
IV.FIAM.HNN. ML:1.7 0.00016991545 1.5904 AML other m 2022-08-18T02:45:03.19
IV.CSP1.EHE. ML:1.9 0.000203 0.18 AML other m 2022-08-18T02:45:04.24
IV.CESI.HHE. ML:1.6 0.00009705 0.16 AML other m 2022-08-18T02:45:04.22
IV.CESI.HHN. ML:1.7 0.00011731835 0.24 AML other m 2022-08-18T02:45:04.23
IV.CESX.HHE. ML:1.8 0.0001314022 0.1792 AML other m 2022-08-18T02:45:04.45
IV.FDMO.HHN. ML:1.6 0.00011350000000000001 0.14 AML other m 2022-08-18T02:45:04.38
IV.CESX.HHN. ML:2.0 0.00022299999999999997 0.16 AML other m 2022-08-18T02:45:04.48
IV.FIAM.HNE. ML:1.6 0.0001472231 0.4 AML other m 2022-08-18T02:45:04.54
IV.MOMA.HHE. ML:2.1 0.00026450000000000003 0.18 AML other m 2022-08-18T02:45:05.24
IV.MOMA.HNE. ML:2.0 0.00022516360000000003 0.1808 AML other m 2022-08-18T02:45:05.16
IV.MNTT.EHE. ML:2.1 0.00024880109999999997 0.4608 AML other m 2022-08-18T02:45:06.72
IV.MOMA.HHN. ML:2.0 0.00020400000000000003 0.14 AML other m 2022-08-18T02:45:07.25
IV.MOMA.HNN. ML:2.0 0.00020083395 0.16 AML other m 2022-08-18T02:45:07.25
IV.CSP1.EHN. ML:2.0 0.00023326435000000002 0.4 AML other m 2022-08-18T02:45:08.44
IV.MNTT.EHN. ML:2.1 0.0002696416 0.3408 AML other m 2022-08-18T02:45:09.34
IV.ASSB.HHN. ML:1.8 0.00011064999999999999 0.14 AML other m 2022-08-18T02:45:09.43
IV.ASSB.HHE. ML:1.7 0.00009280597 0.12 AML other m 2022-08-18T02:45:09.43
IV.T0110.HHN. ML:1.9 0.00015246900000000002 1.68 AML other m 2022-08-18T02:45:10.94
IV.T0110.HHE. ML:1.9 0.00016177225 0.3008 AML other m 2022-08-18T02:45:12.23
IV.ATCC.EHN. ML:1.6 0.000060951355 0.2 AML other m 2022-08-18T02:45:12.89
IV.ATCC.HNE. ML:1.8 0.000097241335 0.3104 AML other m 2022-08-18T02:45:14.55
IV.CING.HHE. ML:1.7 0.00006130063999999999 1.7792 AML other m 2022-08-18T02:45:15.96
IV.SNTG.HHN. ML:1.5 0.0000441 0.38 AML other m 2022-08-18T02:45:15.46
IV.SNTG.HHE. ML:1.3 0.000030347335 0.2 AML other m 2022-08-18T02:45:16.24
IV.SSFR.HHE. ML:1.9 0.00007515 0.46 AML other m 2022-08-18T02:45:18.40
IV.EL6.EHN. ML:1.8 0.000079916745 0.3808 AML other m 2022-08-18T02:45:18.69
IV.ATCC.EHE. ML:1.8 0.00007929999999999999 1.64 AML other m 2022-08-18T02:45:18.12
IV.CING.HHN. ML:1.5 0.000042300000000000005 1.64 AML other m 2022-08-18T02:45:19.89
IV.MGAB.HHN. ML:1.9 0.00007375 0.26 AML other m 2022-08-18T02:45:20.80
IV.EL6.EHE. ML:1.8 0.00007836482 0.6208 AML other m 2022-08-18T02:45:22.53
IV.MGAB.HHE. ML:1.9 0.00008003729000000001 0.7216 AML other m 2022-08-18T02:45:23.46
IV.SSFR.HHN. ML:1.7 0.000055890954999999994 0.24 AML other m 2022-08-18T02:45:29.46
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