Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 10-04-2021 and time 08:32:22 (Italy) in region 2 km SW Amatrice (RI)

A magnitude ML 2.0 earthquake occured in region: 2 km SW Amatrice (RI), on

  • 10-04-2021 06:32:22 (UTC)
  • 10-04-2021 08:32:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6190, 13.2710 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 2 2657 2657
Accumoli RI 9 667 3324
Cittareale RI 9 482 3806
Campotosto AQ 11 542 4348
Montereale AQ 11 2581 6929
Capitignano AQ 11 665 7594
Borbona RI 16 617 8211
Arquata del Tronto AP 17 1178 9389
Posta RI 18 694 10083
Cagnano Amiterno AQ 18 1369 11452
Barete AQ 19 737 12189
Crognaleto TE 19 1297 13486
Cortino TE 19 656 14142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
98 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 2.0 2021-04-10
06:32:22		 42.619 13.2712 11 2021-07-12
16:55:13		 Bollettino Sismico Italiano INGV 90615771
Reviewed
Rev100 		ML 2.1 2021-04-10
06:32:22		 42.6152 13.2735 11 2021-04-10
06:48:12		 Sala Sismica INGV-Roma 88959151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-10 06:32:22 ± 0.07
Latitude 42.6190 ± 0.0036
Longitude 13.2712 ± 0.0049
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 90615771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 406
Semi-minor axis of confidence ellipse (meter) 217
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
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 38
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.01709
Epicentral distance of station farthest from the epicenter (degree) 0.47574
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 90615771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-29 23:35:25

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 88959151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-10 06:48:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2021-04-10T06:32:39.64 3.0 undecidable manual S 118 52.8027 50 0.92 0
IV.CSP1.EHZ. 2021-04-10T06:32:39.13 0.3 undecidable manual S 354 52.7028 50 0.43 65
IV.MF5.EHZ. 2021-04-10T06:32:37.21 3.0 undecidable manual S 20 43.7229 50 0.92 0
IV.FDMO.HHZ. 2021-04-10T06:32:37.95 0.3 undecidable manual S 342 48.7179 50 0.33 67
IV.FIAM.HHZ. 2021-04-10T06:32:35.49 0.3 undecidable manual S 198 40.9257 50 -0.06 72
IV.ARRO.EHZ. 2021-04-10T06:32:35.76 0.6 undecidable manual S 264 41.5251 50 0.05 48
IV.GAVE.EHZ. 2021-04-10T06:32:33.04 0.3 undecidable manual S 285 31.8459 50 -0.08 71
IV.MC2.EHZ. 2021-04-10T06:32:33.94 0.3 undecidable manual S 348 33.1446 50 0.47 67
IV.FAGN.HHZ. 2021-04-10T06:32:32.20 0.1 undecidable manual P 147 46.8198 50 1.41 54
IV.MMO1.EHZ. 2021-04-10T06:32:32.96 0.3 undecidable manual S 8 31.4463 50 -0.05 72
IV.VCEL.EHZ. 2021-04-10T06:32:32.22 0.3 undecidable manual P 118 52.8027 50 0.5 62
IV.CSP1.EHZ. 2021-04-10T06:32:31.59 0.1 undecidable manual P 354 52.7028 50 -0.12 92
IV.OFFI.HHZ. 2021-04-10T06:32:31.77 0.3 undecidable manual P 44 48.618 50 0.69 59
IV.TERO.HNZ. 2021-04-10T06:32:31.16 0.3 undecidable manual S 89 27.1506 50 -0.71 64
IV.NRCA.HNZ. 2021-04-10T06:32:31.50 0.3 undecidable manual S 332 27.0507 50 -0.34 68
IV.MF5.EHZ. 2021-04-10T06:32:30.59 0.3 undecidable manual P 20 43.7229 50 0.28 68
IV.FDMO.HHZ. 2021-04-10T06:32:30.92 0.1 undecidable manual P 342 48.7179 50 -0.16 91
IV.FIAM.HHZ. 2021-04-10T06:32:29.74 0.3 undecidable manual P 198 40.9257 50 -0.15 71
IV.FEMA.HNE. 2021-04-10T06:32:29.99 0.1 undecidable manual P 335 42.1245 50 -0.08 94
IV.LNSS.HHZ. 2021-04-10T06:32:29.70 0.3 undecidable manual S 265 18.9699 50 0.02 75
IV.ARRO.EHZ. 2021-04-10T06:32:29.83 0.1 undecidable manual P 264 41.5251 50 -0.15 93
IV.MTRA.HNZ. 2021-04-10T06:32:29.04 0.3 undecidable manual S 34 18.3705 50 -0.49 68
MN.AQU.HNN. 2021-04-10T06:32:28.12 0.1 undecidable manual P 160 31.3464 50 -0.3 93
IV.MMO1.EHZ. 2021-04-10T06:32:28.30 0.1 undecidable manual P 8 31.4463 50 -0.12 95
IV.GAVE.EHZ. 2021-04-10T06:32:28.38 0.1 undecidable manual P 285 31.8459 50 -0.1 95
IV.CAMP.HHZ. 2021-04-10T06:32:28.08 0.3 undecidable manual S 129 14.5743 127 -0.41 71
IV.MC2.EHZ. 2021-04-10T06:32:28.66 0.1 undecidable manual P 348 33.1446 50 -0.03 97
IV.NRCA.HNZ. 2021-04-10T06:32:27.63 0.1 undecidable manual P 332 27.0507 50 -0.11 96
IV.RM33.HNZ. 2021-04-10T06:32:27.98 0.3 undecidable manual S 201 13.0758 130 -0.1 74
IV.TERO.HNZ. 2021-04-10T06:32:27.37 0.1 undecidable manual P 89 27.1506 50 -0.4 92
IV.SMA1.EHZ. 2021-04-10T06:32:26.46 0.3 undecidable manual S 76 5.3946 154 0.05 76
IV.MTRA.HNZ. 2021-04-10T06:32:26.20 0.1 positive manual P 34 18.3705 50 -0.21 96
IV.T1299.HNN. 2021-04-10T06:32:26.07 0.6 undecidable manual S 28 1.8981 170 0.03 51
IV.LNSS.HHZ. 2021-04-10T06:32:26.51 0.1 undecidable manual P 265 18.9699 50 0.01 100
IV.CAMP.HHZ. 2021-04-10T06:32:25.70 0.1 undecidable manual P 129 14.5743 127 -0.11 100
IV.RM33.HNZ. 2021-04-10T06:32:25.62 0.1 undecidable manual P 201 13.0758 130 0.04 100
IV.SMA1.EHZ. 2021-04-10T06:32:24.79 0.1 undecidable manual P 76 5.3946 154 0.18 99
IV.T1299.HNN. 2021-04-10T06:32:24.57 0.1 undecidable manual P 28 1.8981 170 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2.3 0.003305 0.42 AML other m 2021-04-10T06:32:26.99
IV.SMA1.EHE. ML:2.6 0.00614 0.24 AML other m 2021-04-10T06:32:26.81
IV.RM33.HNN. ML:2.2 0.00152 0.32 AML other m 2021-04-10T06:32:28.05
IV.RM33.EHN. ML:2.2 0.0015 0.32 AML other m 2021-04-10T06:32:28.06
IV.RM33.HNE. ML:2.4 0.0024100000000000002 0.14 AML other m 2021-04-10T06:32:28.23
IV.RM33.EHE. ML:2.4 0.00234 0.12 AML other m 2021-04-10T06:32:28.23
IV.CAMP.HHE. ML:1.2 0.00015099999999999998 0.52 AML other m 2021-04-10T06:32:28.70
IV.MTRA.HNN. ML:2.1 0.0009850000000000002 0.22 AML other m 2021-04-10T06:32:29.45
IV.MTRA.EHN. ML:2.1 0.0009355 0.22 AML other m 2021-04-10T06:32:29.45
IV.LNSS.HNN. ML:2.0 0.00077755585 0.1408 AML other m 2021-04-10T06:32:29.79
IV.LNSS.HHN. ML:2.1 0.001016 0.32 AML other m 2021-04-10T06:32:29.79
IV.LNSS.HHE. ML:2.2 0.001355 0.14 AML other m 2021-04-10T06:32:29.90
IV.LNSS.HNE. ML:2.2 0.0012357680000000002 0.1312 AML other m 2021-04-10T06:32:29.90
IV.CAMP.HHN. ML:1.4 0.000246 0.76 AML other m 2021-04-10T06:32:30.58
IV.MTRA.EHE. ML:2.0 0.0007095000000000001 1.48 AML other m 2021-04-10T06:32:30.97
IV.MTRA.HNE. ML:2.0 0.0007095000000000001 0.64 AML other m 2021-04-10T06:32:30.23
IV.TERO.HHE. ML:1.8 0.0003005 0.14 AML other m 2021-04-10T06:32:31.26
IV.TERO.HNN. ML:2.0 0.0004889811499999999 0.16 AML other m 2021-04-10T06:32:31.19
IV.NRCA.HNE. ML:2.4 0.0012776121499999999 0.192 AML other m 2021-04-10T06:32:31.84
IV.NRCA.HHE. ML:2.4 0.00135718475 0.1792 AML other m 2021-04-10T06:32:31.84
IV.TERO.HNE. ML:1.7 0.00025576509999999995 0.1376 AML other m 2021-04-10T06:32:31.98
IV.TERO.HHN. ML:1.9 0.00046199999999999995 1.52 AML other m 2021-04-10T06:32:31.19
IV.NRCA.HNN. ML:1.9 0.00041678325 0.0992 AML other m 2021-04-10T06:32:32.55
IV.NRCA.HHN. ML:1.9 0.00045214635 0.0992 AML other m 2021-04-10T06:32:32.55
IV.GAVE.EHN. ML:1.9 0.00035865124999999996 0.16 AML other m 2021-04-10T06:32:33.36
IV.GAVE.HNE. ML:2.0 0.0004171184 0.1504 AML other m 2021-04-10T06:32:33.72
IV.GAVE.EHE. ML:2.0 0.00040466815 0.1408 AML other m 2021-04-10T06:32:33.72
IV.ARRO.EHN. ML:1.5 0.00010359873 0.16 AML other m 2021-04-10T06:32:38.49
IV.FIAM.HHN. ML:1.1 0.00003935686500000001 0.4992 AML other m 2021-04-10T06:32:39.47
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
Waveforms Seismic signals in miniseed + resp format Download