Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 27-02-2022 and time 14:06:20 (UTC) in region 4 km N Amatrice (RI)

A magnitude ML 1.6 earthquake occured in region: 4 km N Amatrice (RI), on

  • 27-02-2022 14:06:20 (UTC)
  • 27-02-2022 15:06:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6670, 13.3020 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
Amatrice RI 4 2657 2657
Accumoli RI 5 667 3324
Arquata del Tronto AP 12 1178 4502
Cittareale RI 13 482 4984
Campotosto AQ 13 542 5526
Acquasanta Terme AP 14 2916 8442
Capitignano AQ 16 665 9107
Montereale AQ 17 2581 11688
Cortino TE 18 656 12344
Valle Castellana TE 18 977 13321
Rocca Santa Maria TE 19 537 13858
Crognaleto TE 20 1297 15155
Montegallo AP 20 523 15678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
36 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
89 Km SE of Perugia (166134 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 1.6 2022-02-27
14:06:20		 42.6673 13.3025 13 2022-07-08
12:33:59		 Bollettino Sismico Italiano INGV 105086201
Reviewed
Rev100 		ML 1.6 2022-02-27
14:06:20		 42.6652 13.2985 13 2022-02-27
14:11:39		 Sala Sismica INGV-Roma 101509461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-27 14:06:20 ± 0.07
Latitude 42.6673 ± 0.0036
Longitude 13.3025 ± 0.0061
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 105086201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 458
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.04407
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 105086201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-06-06 12:54:13

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 101509461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-27 14:11:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-02-27T14:06:35.92 0.6 undecidable manual S 350 47.7189 93 0.23 46
IV.MF5.EHZ. 2022-02-27T14:06:34.09 0.3 undecidable manual S 20 37.7289 94 1.06 52
IV.FDMO.HHZ. 2022-02-27T14:06:34.86 0.6 undecidable manual S 337 44.5221 94 0.03 48
IV.GIGS.HHZ. 2022-02-27T14:06:31.37 0.6 undecidable manual S 137 32.4453 96 -0.24 47
IV.GAVE.EHZ. 2022-02-27T14:06:31.90 0.6 undecidable manual S 275 33.4443 95 0.03 49
IV.MC2.EHZ. 2022-02-27T14:06:30.65 0.6 undecidable manual S 341 28.6491 97 0.05 49
7F.SIB1.EHE. 2022-02-27T14:06:29.69 0.6 undecidable manual S 354 25.3524 99 -0.05 49
7F.SIB2.EHE. 2022-02-27T14:06:29.29 0.6 undecidable manual S 0 24.8529 99 -0.31 46
IV.CSP1.EHZ. 2022-02-27T14:06:29.26 0.3 undecidable manual P 350 47.7189 93 0 71
IV.MMO1.EHZ. 2022-02-27T14:06:29.80 0.6 undecidable manual S 4 25.8519 98 -0.05 48
IV.TERO.HHZ. 2022-02-27T14:06:29.46 0.3 undecidable manual S 101 25.0527 99 -0.2 72
7F.SIB3.EHN. 2022-02-27T14:06:28.88 0.6 undecidable manual S 353 23.1546 100 -0.29 46
IV.MF5.EHZ. 2022-02-27T14:06:28.19 0.1 undecidable manual P 20 37.7289 94 0.47 88
IV.FDMO.HHZ. 2022-02-27T14:06:28.63 0.3 undecidable manual P 337 44.5221 94 -0.13 69
IV.RM33.EHZ. 2022-02-27T14:06:28.04 0.6 undecidable manual S 202 18.9699 106 -0.03 50
IV.ARRO.EHE. 2022-02-27T14:06:28.68 0.3 undecidable manual P 258 44.9217 93 -0.14 69
IV.NRCA.HHZ. 2022-02-27T14:06:28.98 0.6 undecidable manual S 320 23.9538 100 -0.39 45
IV.GAVE.EHZ. 2022-02-27T14:06:26.91 0.1 undecidable manual P 275 33.4443 95 -0.14 94
IV.MTRA.HNZ. 2022-02-27T14:06:26.14 0.6 undecidable manual S 38 12.4764 122 -0.35 47
IV.MC2.EHZ. 2022-02-27T14:06:26.31 0.1 undecidable manual P 341 28.6491 97 -0.01 98
IV.GIGS.HHZ. 2022-02-27T14:06:26.80 0.1 undecidable manual P 137 32.4453 96 -0.1 96
IV.RM33.EHZ. 2022-02-27T14:06:25.07 0.1 undecidable manual P 202 18.9699 106 0.21 95
IV.MMO1.EHZ. 2022-02-27T14:06:25.92 0.1 undecidable manual P 4 25.8519 98 0.03 98
IV.TERO.HHZ. 2022-02-27T14:06:25.75 0.1 undecidable manual P 101 25.0527 99 -0.03 99
IV.NRCA.HHZ. 2022-02-27T14:06:25.56 0.1 undecidable manual P 320 23.9538 100 -0.05 97
IV.SMA1.EHZ. 2022-02-27T14:06:25.04 0.6 undecidable manual S 147 4.8951 154 -0.08 51
7F.SIB2.EHE. 2022-02-27T14:06:25.66 0.1 undecidable manual P 0 24.8529 99 -0.08 97
7F.SIB3.EHN. 2022-02-27T14:06:25.38 0.3 undecidable manual P 353 23.1546 100 -0.11 72
7F.SIB1.EHE. 2022-02-27T14:06:25.87 0.3 undecidable manual P 354 25.3524 99 0.05 74
IV.MTRA.HNZ. 2022-02-27T14:06:24.00 0.1 undecidable manual P 38 12.4764 122 0.05 100
IV.SMA1.EHZ. 2022-02-27T14:06:23.37 0.1 undecidable manual P 147 4.8951 154 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.9 0.0009790080000000002 0.1152 AML other m 2022-02-27T14:06:25.14
IV.SMA1.EHE. ML:1.7 0.00074455585 0.0768 AML other m 2022-02-27T14:06:25.14
IV.TERO.HNN. ML:1.5 0.0001890384 0.8192 AML other m 2022-02-27T14:06:25.20
IV.MMO1.HNE. ML:3.0 0.005335167500000001 0.5952 AML other m 2022-02-27T14:06:25.84
IV.MTRA.HNE. ML:1.6 0.00040156305 0.16 AML other m 2022-02-27T14:06:26.48
IV.MTRA.EHE. ML:1.6 0.00038672885 0.1408 AML other m 2022-02-27T14:06:26.49
IV.MTRA.HNN. ML:1.8 0.0006065 0.18 AML other m 2022-02-27T14:06:26.50
IV.MTRA.EHN. ML:1.8 0.000624 0.16 AML other m 2022-02-27T14:06:26.51
IV.GAVE.HNE. ML:1.6 0.0001770665 1.136 AML other m 2022-02-27T14:06:27.10
IV.RM33.HNE. ML:1.5 0.00020470090000000002 0.3264 AML other m 2022-02-27T14:06:28.28
IV.RM33.EHE. ML:1.4 0.000159475 0.32 AML other m 2022-02-27T14:06:28.28
IV.RM33.EHN. ML:1.2 0.00011936495 0.1216 AML other m 2022-02-27T14:06:28.55
IV.RM33.HNN. ML:1.3 0.00014196530499999997 0.1408 AML other m 2022-02-27T14:06:28.74
IV.GAVE.HNN. ML:1.8 0.0002315552 0.736 AML other m 2022-02-27T14:06:29.54
IV.NRCA.HNE. ML:1.7 0.00028208277 0.0704 AML other m 2022-02-27T14:06:29.30
IV.NRCA.HHE. ML:1.7 0.000303 0.08 AML other m 2022-02-27T14:06:29.30
IV.TERO.HHN. ML:1.3 0.00011164938500000001 0.0832 AML other m 2022-02-27T14:06:29.70
IV.TERO.HNE. ML:1.3 0.000120559505 0.1216 AML other m 2022-02-27T14:06:29.68
IV.TERO.HHE. ML:1.3 0.000120533115 0.224 AML other m 2022-02-27T14:06:29.69
IV.NRCA.HHN. ML:1.6 0.0002415 1.58 AML other m 2022-02-27T14:06:29.04
IV.NRCA.HNN. ML:1.6 0.00023060529999999999 0.1728 AML other m 2022-02-27T14:06:29.83
IV.MMO1.EHE. ML:1.2 0.000097101915 1.9168 AML other m 2022-02-27T14:06:30.03
IV.MMO1.EHN. ML:1.4 0.00014609999 0.1216 AML other m 2022-02-27T14:06:30.06
IV.MMO1.HNN. ML:3.0 0.005765447 0.576 AML other m 2022-02-27T14:06:30.41
IV.MC2.EHN. ML:1.8 0.0002833014 0.32 AML other m 2022-02-27T14:06:32.70
IV.MC2.EHE. ML:1.5 0.00016983965 1.7824 AML other m 2022-02-27T14:06:33.94
IV.GAVE.EHE. ML:1.4 0.00010565971000000001 0.2816 AML other m 2022-02-27T14:06:33.15
IV.GAVE.EHN. ML:1.3 0.000078728735 0.1792 AML other m 2022-02-27T14:06:33.54
IV.MF5.EHN. ML:1.9 0.00028054020000000004 0.176 AML other m 2022-02-27T14:06:43.15
IV.CSP1.EHN. ML:2.1 0.00033920805 0.1824 AML other m 2022-02-27T14:06:47.39
IV.CSP1.EHE. ML:2.1 0.0003178857 0.2016 AML other m 2022-02-27T14:06:47.77
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