Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 02-07-2021 and time 05:02:00 (Italy) in region 2 km SW Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Amatrice (RI), on

  • 02-07-2021 03:02:00 (UTC)
  • 02-07-2021 05:02:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6160, 13.2770 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 2 2657 2657
Accumoli RI 9 667 3324
Cittareale RI 10 482 3806
Campotosto AQ 10 542 4348
Montereale AQ 10 2581 6929
Capitignano AQ 11 665 7594
Borbona RI 16 617 8211
Arquata del Tronto AP 18 1178 9389
Cagnano Amiterno AQ 18 1369 10758
Posta RI 18 694 11452
Crognaleto TE 18 1297 12749
Barete AQ 18 737 13486
Cortino TE 19 656 14142
Pizzoli AQ 20 4326 18468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
35 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
72 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)
82 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 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 1.3 2021-07-02
03:02:00		 42.6158 13.2772 13 2021-12-29
11:12:14		 Bollettino Sismico Italiano INGV 93235421
Reviewed
Rev100 		ML 1.4 2021-07-02
03:02:00		 42.6187 13.2707 11 2021-07-02
03:07:45		 Sala Sismica INGV-Roma 92126351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-02 03:02:00 ± 0.04
Latitude 42.6158 ± 0.0027
Longitude 13.2772 ± 0.0037
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93235421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 299
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 93235421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-26 11:50:58

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 92126351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-02 03:07:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-07-02T03:02:39.54 3.0 undecidable manual S 0.31 0
IV.FDMO.HHZ. 2021-07-02T03:02:16.71 0.6 undecidable manual S 342 49.1175 93 0.38 44
IV.MF5.EHZ. 2021-07-02T03:02:15.27 1.0 undecidable manual S 20 43.8228 93 0.35 22
IV.ASSB.HHN. 2021-07-02T03:02:12.86 0.1 undecidable manual P 313 69.0753 92 0.05 91
IV.GAVE.EHZ. 2021-07-02T03:02:11.57 0.3 undecidable manual S 285 32.3454 95 -0.29 70
IV.GIGS.HHN. 2021-07-02T03:02:11.31 0.6 undecidable manual S 127 30.1476 96 0.03 49
IV.MOMA.HNZ. 2021-07-02T03:02:11.66 0.1 undecidable manual P 290 61.2942 92 0.05 92
IV.MML1.HNE. 2021-07-02T03:02:11.52 0.1 undecidable manual P 336 60.495 92 0.02 93
IV.MMO1.EHZ. 2021-07-02T03:02:11.65 0.3 undecidable manual S 7 31.746 95 -0.03 73
IV.CESI.HHE. 2021-07-02T03:02:10.23 0.1 undecidable manual P 325 52.7028 92 -0.07 94
IV.TERO.HHZ. 2021-07-02T03:02:10.06 0.3 undecidable manual S 88 26.6511 97 -0.29 70
IV.NRCA.HHZ. 2021-07-02T03:02:10.43 0.3 undecidable manual S 331 27.5502 97 -0.15 72
IV.MF5.EHZ. 2021-07-02T03:02:09.33 0.6 undecidable manual P 20 43.8228 93 0.4 44
IV.FDMO.HHZ. 2021-07-02T03:02:09.70 0.3 undecidable manual P 342 49.1175 93 -0.04 71
IV.GUMA.HHZ. 2021-07-02T03:02:09.72 0.6 undecidable manual P 5 49.8168 93 -0.12 47
IV.FAGN.HHZ. 2021-07-02T03:02:09.38 0.1 undecidable manual P 147 46.2204 93 0.08 94
IV.FIAM.HNN. 2021-07-02T03:02:08.44 0.1 undecidable manual P 199 40.7259 93 -0.01 97
IV.ARRO.EHZ. 2021-07-02T03:02:08.70 0.3 undecidable manual P 265 41.9247 93 0.06 72
IV.LNSS.HNZ. 2021-07-02T03:02:08.09 0.3 undecidable manual S 266 19.3695 103 -0.34 70
IV.MMO1.EHZ. 2021-07-02T03:02:07.15 0.3 undecidable manual P 7 31.746 95 0.09 72
IV.GAVE.EHZ. 2021-07-02T03:02:07.26 0.3 positive manual P 285 32.3454 95 0.1 72
IV.MTRA.HNZ. 2021-07-02T03:02:07.77 0.6 undecidable manual S 32 18.3705 105 -0.41 46
IV.RM33.EHZ. 2021-07-02T03:02:06.86 0.3 undecidable manual S 203 12.876 119 0.04 76
IV.CAMP.HHZ. 2021-07-02T03:02:06.97 0.6 undecidable manual S 129 13.9749 116 -0.1 50
IV.GIGS.HHN. 2021-07-02T03:02:06.69 0.1 undecidable manual P 127 30.1476 96 -0.14 96
MN.AQU.HNN. 2021-07-02T03:02:06.63 0.1 undecidable manual P 160 30.8469 95 -0.3 93
IV.TERO.HHZ. 2021-07-02T03:02:06.38 0.3 undecidable manual P 88 26.6511 97 0.09 73
IV.NRCA.HHZ. 2021-07-02T03:02:06.49 0.1 positive manual P 331 27.5502 97 0.07 98
IV.LNSS.HNZ. 2021-07-02T03:02:05.39 0.1 undecidable manual P 266 19.3695 103 0.21 96
IV.SMA1.EHZ. 2021-07-02T03:02:05.27 0.3 undecidable manual S 71 4.995 153 -0.08 76
IV.T1299.HNZ. 2021-07-02T03:02:04.85 0.3 undecidable manual S 12 2.0979 168 -0.24 74
IV.MTRA.HNZ. 2021-07-02T03:02:04.91 0.1 undecidable manual P 32 18.3705 105 -0.13 98
IV.RM33.EHZ. 2021-07-02T03:02:04.53 0.3 undecidable manual P 203 12.876 119 0.28 72
IV.CAMP.HHZ. 2021-07-02T03:02:04.54 0.1 undecidable manual P 129 13.9749 116 0.14 99
IV.SMA1.EHZ. 2021-07-02T03:02:03.68 0.1 negative manual P 71 4.995 153 0.28 97
IV.T1299.HNZ. 2021-07-02T03:02:03.42 0.1 undecidable manual P 12 2.0979 168 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.6 0.0004904999999999999 0.3 AML other m 2021-07-02T03:02:05.70
IV.SMA1.EHN. ML:1.3 0.00027400000000000005 0.34 AML other m 2021-07-02T03:02:05.60
IV.RM33.EHE. ML:1.4 0.00020999999999999998 0.84 AML other m 2021-07-02T03:02:07.12
IV.RM33.EHN. ML:1.4 0.000232 0.3 AML other m 2021-07-02T03:02:07.10
IV.NRCA.HHE. ML:1.4 0.000121 0.12 AML other m 2021-07-02T03:02:10.94
IV.NRCA.HHN. ML:1.3 0.0001092 1.12 AML other m 2021-07-02T03:02:11.09
IV.GAVE.EHN. ML:1.2 0.00007324999999999999 0.2 AML other m 2021-07-02T03:02:12.22
IV.GAVE.EHE. ML:1.2 0.00006104049999999999 0.22 AML other m 2021-07-02T03:02:13.34
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