Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 27-02-2022 and time 15:34:25 (Italy) in region 4 km N Amatrice (RI)

A magnitude ML 1.8 earthquake occured in region: 4 km N Amatrice (RI), on

  • 27-02-2022 14:34:25 (UTC)
  • 27-02-2022 15:34:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6690, 13.3010 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 4 2657 2657
Accumoli RI 5 667 3324
Arquata del Tronto AP 12 1178 4502
Cittareale RI 13 482 4984
Campotosto AQ 14 542 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
Montegallo AP 20 523 14381
Crognaleto TE 20 1297 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)
72 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)
89 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 1.8 2022-02-27
14:34:25		 42.6687 13.3013 11 2022-07-08
12:33:59		 Bollettino Sismico Italiano INGV 105086291
Reviewed
Rev100 		ML 1.7 2022-02-27
14:34:25		 42.6713 13.2933 10 2022-02-27
14:41:01		 Sala Sismica INGV-Roma 101509881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-27 14:34:25 ± 0.07
Latitude 42.6687 ± 0.0027
Longitude 13.3013 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 105086291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 457
Semi-minor axis of confidence ellipse (meter) 228
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
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) 73
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60075
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 105086291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-06-06 12:56:59

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 101509881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-27 14:41:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2022-02-27T14:35:55.17 3.0 undecidable manual Sn 4.88 0
IV.MIGL.HHZ. 2022-02-27T14:35:48.57 3.0 undecidable manual Sn -3.29 0
IV.FVI.HHZ. 2022-02-27T14:35:29.39 3.0 undecidable manual Sn -9.99 0
IV.MSSA.HHZ. 2022-02-27T14:35:28.64 3.0 undecidable manual Sg 1.56 0
IV.SCIAC.HHZ. 2022-02-27T14:35:27.43 3.0 undecidable manual Pn -2.24 0
IV.CET2.HHZ. 2022-02-27T14:35:27.11 3.0 undecidable manual Pg 11.87 0
IV.POFI.HHZ. 2022-02-27T14:35:18.76 3.0 undecidable manual Sg 20.209999 0
IV.MBAL.EHZ. 2022-02-27T14:35:17.47 3.0 undecidable manual Sn -9.99 0
GU.CANO.HHZ. 2022-02-27T14:35:03.57 3.0 undecidable manual Pg -1.21 0
IV.PAOL.HHZ. 2022-02-27T14:34:59.68 3.0 undecidable manual Pg 8.94 0
IV.MSSA.HHZ. 2022-02-27T14:34:55.82 3.0 undecidable manual Pg 0.96 0
IV.AGLI.HHZ. 2022-02-27T14:34:54.26 3.0 undecidable manual Pn -3.98 0
IV.ASSB.HHZ. 2022-02-27T14:34:46.42 0.6 undecidable manual S 309 66.6777 90 0.57 40
IV.FRON.EHZ. 2022-02-27T14:34:44.99 3.0 undecidable manual Sg -2.45 0
IV.MCIV.CHZ. 2022-02-27T14:34:42.00 3.0 undecidable manual Sn -1.08 0
IV.FAGN.HHZ. 2022-02-27T14:34:41.92 0.6 undecidable manual S 153 50.3163 90 0.45 44
IV.FDMO.HHZ. 2022-02-27T14:34:39.87 0.3 undecidable manual S 337 44.3223 90 -0.01 71
IV.MF5.EHZ. 2022-02-27T14:34:39.16 0.3 undecidable manual S 20 37.629 90 1.06 53
MN.AQU.HNN. 2022-02-27T14:34:37.74 0.6 undecidable manual S 166 35.9418 90 0.11 48
IV.ASSB.HHZ. 2022-02-27T14:34:37.27 0.3 undecidable manual P 309 66.6777 90 -0.02 68
IV.GIGS.HHN. 2022-02-27T14:34:36.32 0.6 undecidable manual S 137 32.6451 91 -0.43 43
IV.ASCOL.EHN. 2022-02-27T14:34:36.25 0.6 undecidable manual S 49 31.0467 91 -0.07 47
IV.GAVE.EHZ. 2022-02-27T14:34:36.80 0.6 undecidable manual S 275 33.3444 91 -0.13 48
IV.MC2.EHZ. 2022-02-27T14:34:35.84 0.3 undecidable manual S 341 28.4493 91 0.21 71
IV.MMO1.EHZ. 2022-02-27T14:34:34.77 0.3 undecidable manual S 5 25.6521 91 -0.12 71
7F.SIB1.EHE. 2022-02-27T14:34:34.81 0.6 undecidable manual S 354 25.1526 91 0.04 49
IV.NRCA.HHZ. 2022-02-27T14:34:34.02 0.3 undecidable manual S 320 23.8539 91 -0.38 69
7F.SIB2.EHE. 2022-02-27T14:34:34.22 0.6 undecidable manual S 0 24.6531 91 -0.41 45
IV.TERO.HHZ. 2022-02-27T14:34:34.37 0.3 undecidable manual S 102 25.1526 91 -0.4 66
IV.FAGN.HHZ. 2022-02-27T14:34:34.71 0.3 undecidable manual P 153 50.3163 90 -0.05 69
IV.FDMO.HHZ. 2022-02-27T14:34:33.65 0.3 undecidable manual P 337 44.3223 90 -0.19 69
IV.RM33.EHZ. 2022-02-27T14:34:33.01 0.3 undecidable manual S 202 19.0698 92 -0.13 72
IV.MF5.EHZ. 2022-02-27T14:34:33.20 0.3 undecidable manual P 20 37.629 90 0.39 67
7F.SIB3.EHN. 2022-02-27T14:34:33.75 0.6 undecidable manual S 354 23.0547 91 -0.44 45
MN.AQU.HNN. 2022-02-27T14:34:32.97 0.6 undecidable manual P 166 35.9418 90 0.43 45
IV.RIBO.EHZ.01 2022-02-27T14:34:32.26 3.0 negative manual Pg -2.47 0
IV.MC2.EHZ. 2022-02-27T14:34:31.36 0.3 undecidable manual P 341 28.4493 91 -0.03 73
IV.MTRA.HNZ. 2022-02-27T14:34:31.13 0.3 undecidable manual S 38 12.4764 108 -0.26 72
IV.GIGS.HHN. 2022-02-27T14:34:31.71 0.3 undecidable manual P 137 32.6451 91 -0.32 67
IV.ASCOL.EHN. 2022-02-27T14:34:31.92 0.3 undecidable manual P 49 31.0467 91 0.14 72
IV.GAVE.EHZ. 2022-02-27T14:34:31.95 0.1 positive manual P 275 33.3444 91 -0.19 94
7F.SIB1.EHE. 2022-02-27T14:34:31.05 0.3 undecidable manual P 354 25.1526 91 0.16 72
7F.SIB3.EHN. 2022-02-27T14:34:30.35 0.3 undecidable manual P 354 23.0547 91 -0.2 71
IV.TERO.HHZ. 2022-02-27T14:34:30.73 0.1 undecidable manual P 102 25.1526 91 -0.16 94
IV.MMO1.EHZ. 2022-02-27T14:34:30.91 0.1 undecidable manual P 5 25.6521 91 -0.05 97
7F.SIB2.EHE. 2022-02-27T14:34:30.59 0.3 undecidable manual P 0 24.6531 91 -0.22 70
IV.NRCA.HHZ. 2022-02-27T14:34:30.48 0.1 positive manual P 320 23.8539 91 -0.19 95
IV.RM33.EHZ. 2022-02-27T14:34:29.97 0.1 undecidable manual P 202 19.0698 92 0.02 99
IV.SMA1.EHZ. 2022-02-27T14:34:29.91 0.3 undecidable manual S 147 5.0949 148 0.06 74
IV.SEI.HHZ. 2022-02-27T14:34:29.30 3.0 negative manual P -9.99 0
IV.MTRA.HNZ. 2022-02-27T14:34:28.95 0.1 undecidable manual P 38 12.4764 108 0.01 100
IV.SMA1.EHZ. 2022-02-27T14:34:28.32 0.1 undecidable manual P 147 5.0949 148 0.27 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.6 0.0006054999999999999 0.16 AML other m 2022-02-27T14:34:30.44
IV.SMA1.EHE. ML:1.7 0.0007015 0.52 AML other m 2022-02-27T14:34:30.40
IV.MTRA.HNN. ML:2.1 0.00133 0.18 AML other m 2022-02-27T14:34:31.46
IV.MTRA.EHN. ML:2.1 0.001315 0.18 AML other m 2022-02-27T14:34:31.47
IV.MTRA.HNE. ML:1.9 0.000902 0.72 AML other m 2022-02-27T14:34:31.12
IV.MTRA.EHE. ML:1.9 0.0008515 0.72 AML other m 2022-02-27T14:34:31.12
IV.RM33.EHN. ML:1.4 0.00016499999999999997 0.32 AML other m 2022-02-27T14:34:33.12
IV.RM33.EHE. ML:1.5 0.0002475 1.24 AML other m 2022-02-27T14:34:33.94
IV.NRCA.HNE. ML:1.9 0.000448 0.7 AML other m 2022-02-27T14:34:34.73
IV.TERO.HHE. ML:1.6 0.000247 0.22 AML other m 2022-02-27T14:34:34.62
IV.NRCA.HHN. ML:1.8 0.00033800000000000003 0.44 AML other m 2022-02-27T14:34:34.78
IV.NRCA.HHE. ML:1.9 0.00046100000000000004 0.1 AML other m 2022-02-27T14:34:34.78
IV.MMO1.EHN. ML:1.7 0.0002875 1.6 AML other m 2022-02-27T14:34:35.05
IV.NRCA.HNN. ML:1.9 0.00045650000000000004 0.88 AML other m 2022-02-27T14:34:36.56
IV.MMO1.EHE. ML:1.6 0.00023649999999999998 0.84 AML other m 2022-02-27T14:34:36.21
IV.TERO.HHN. ML:1.6 0.000224 0.44 AML other m 2022-02-27T14:34:36.70
IV.GAVE.EHN. ML:1.6 0.0001885 1.42 AML other m 2022-02-27T14:34:37.28
IV.GAVE.EHE. ML:1.7 0.0002165 0.72 AML other m 2022-02-27T14:34:37.25
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