Earthquake with magnitude of ML 1.3 on date 08-05-2021 and time 19:44:59 (Italy) in region 8 km W Arquata del Tronto (AP)

A magnitude ML 1.3 earthquake occured in region: 8 km W Arquata del Tronto (AP), on

  • 08-05-2021 17:44:59 (UTC)
  • 08-05-2021 19:44:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7700, 13.2050 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Arquata del Tronto AP 8 1178 1178
Accumoli RI 9 667 1845
Norcia PG 9 4957 6802
Montegallo AP 13 523 7325
Castelsantangelo sul Nera MC 15 281 7606
Cascia PG 17 3217 10823
Acquasanta Terme AP 17 2916 13739
Amatrice RI 17 2657 16396
Cittareale RI 17 482 16878
Montemonaco AP 18 604 17482
Preci PG 18 724 18206

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
51 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
98 Km S of Ancona (100861 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
Reviewed
Rev100
ML 1.3 2021-05-08
17:44:59
42.7698 13.2048 9 2021-05-08
17:55:56
Sala Sismica INGV-Roma 89921691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-08 17:44:59 ± 0.05
Latitude 42.7698 ± 0.0027
Longitude 13.2048 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89921691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
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 27
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32825
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 89921691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-08 17:55:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PE3.EHZ. 2021-05-08T17:45:20.83 3.0 positive manual P 0.6 0
IV.ASSB.HHZ. 2021-05-08T17:45:16.87 3.0 undecidable manual S -0.58 0
IV.CESI.HHZ. 2021-05-08T17:45:12.02 0.3 undecidable manual S 317 35.742 50 0.19 70
IV.MF5.EHZ. 2021-05-08T17:45:11.67 0.3 undecidable manual S 41 31.8459 50 0.87 57
IV.CSP1.EHZ. 2021-05-08T17:45:11.75 0.3 undecidable manual S 0 35.742 50 -0.09 71
IV.TERO.HHZ. 2021-05-08T17:45:11.62 0.3 undecidable manual S 116 36.4413 50 -0.4 67
IV.FDMO.HHZ. 2021-05-08T17:45:10.41 0.3 undecidable manual S 342 31.0467 50 -0.19 70
IV.RM33.EHZ. 2021-05-08T17:45:10.00 0.3 undecidable manual S 178 28.9488 50 -0.03 73
IV.GAVE.EHZ. 2021-05-08T17:45:09.29 0.3 undecidable manual S 251 26.751 109 -0.01 74
IV.LNSS.HHZ. 2021-05-08T17:45:08.19 0.3 undecidable manual S 216 22.8549 112 0.14 72
IV.SMA1.EHZ. 2021-05-08T17:45:06.86 0.3 undecidable manual S 145 18.7701 117 0.11 73
IV.TERO.HHZ. 2021-05-08T17:45:06.53 0.3 undecidable manual P 116 36.4413 50 -0.18 70
IV.CESI.HHZ. 2021-05-08T17:45:06.63 0.3 undecidable manual P 317 35.742 50 0.02 72
IV.MF5.EHZ. 2021-05-08T17:45:06.26 0.1 undecidable manual P 41 31.8459 50 0.25 93
IV.MMO1.EHZ. 2021-05-08T17:45:06.22 0.1 undecidable manual S 35 17.4714 118 -0.13 97
IV.CSP1.EHZ. 2021-05-08T17:45:06.36 0.3 undecidable manual P 0 35.742 50 -0.25 69
IV.RM33.EHZ. 2021-05-08T17:45:05.47 0.1 undecidable manual P 178 28.9488 50 -0.1 96
IV.FDMO.HHZ. 2021-05-08T17:45:05.68 0.3 undecidable manual P 342 31.0467 50 -0.21 70
IV.MTRA.EHZ. 2021-05-08T17:45:05.70 0.3 undecidable manual S 95 15.6732 121 -0.11 73
IV.GAVE.EHZ. 2021-05-08T17:45:05.22 0.3 undecidable manual P 251 26.751 109 0.07 73
IV.NRCA.HHZ. 2021-05-08T17:45:04.17 0.3 undecidable manual S 314 10.1787 133 -0.11 74
IV.LNSS.HHZ. 2021-05-08T17:45:04.50 0.3 undecidable manual P 216 22.8549 112 0.08 73
IV.MMO1.EHZ. 2021-05-08T17:45:03.37 0.1 undecidable manual P 35 17.4714 118 -0.07 99
IV.MC2.EHZ. 2021-05-08T17:45:03.23 0.1 undecidable manual P 355 15.7731 121 0.09 98
IV.SMA1.EHZ. 2021-05-08T17:45:03.78 0.3 undecidable manual P 145 18.7701 117 0.11 73
IV.MTRA.EHZ. 2021-05-08T17:45:03.27 0.1 undecidable manual P 95 15.6732 121 0.14 97
IV.NRCA.HHZ. 2021-05-08T17:45:02.19 0.1 undecidable manual P 314 10.1787 133 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.5 0.0004051976 0.1024 AML other m 2021-05-08T17:45:04.77
IV.NRCA.HHE. ML:1.5 0.0004211303 0.1024 AML other m 2021-05-08T17:45:04.38
IV.MTRA.EHN. ML:1.1 0.00010896842 0.3328 AML other m 2021-05-08T17:45:08.63
IV.MTRA.EHE. ML:1.1 0.00011229298 0.128 AML other m 2021-05-08T17:45:07.16
IV.LNSS.HHE. ML:1.4 0.00016549999999999998 0.14 AML other m 2021-05-08T17:45:08.49
IV.SMA1.EHE. ML:0.9 0.0000624 0.88 AML other m 2021-05-08T17:45:08.05
IV.LNSS.HHN. ML:1.5 0.00021700000000000002 0.18 AML other m 2021-05-08T17:45:08.55
IV.SMA1.EHN. ML:0.9 0.00006075 0.68 AML other m 2021-05-08T17:45:09.56
IV.GAVE.EHE. ML:1.2 0.00009309999999999999 0.14 AML other m 2021-05-08T17:45:09.54
IV.GAVE.EHN. ML:1.4 0.000135 1.88 AML other m 2021-05-08T17:45:09.94
IV.RM33.EHN. ML:1.3 0.00010994999999999999 0.18 AML other m 2021-05-08T17:45:10.41
IV.RM33.EHE. ML:1.2 0.00007280000000000001 1.02 AML other m 2021-05-08T17:45:11.61
IV.NRCA.HNE. ML:1.5 0.00037417879999999997 0.1408 AML other m 2021-05-08T17:45:04.33
IV.NRCA.HNN. ML:1.4 0.0003696913 0.1024 AML other m 2021-05-08T17:45:04.83
IV.MTRA.HNE. ML:1.0 0.00010477612000000001 0.1024 AML other m 2021-05-08T17:45:07.16
IV.MTRA.HNN. ML:1.2 0.00013808958499999998 4.224 AML other m 2021-05-08T17:45:05.79
IV.LNSS.HNE. ML:1.4 0.00016002852499999998 0.1664 AML other m 2021-05-08T17:45:08.49
IV.LNSS.HNN. ML:1.5 0.00021297905 0.1792 AML other m 2021-05-08T17:45:08.54
IV.GAVE.HNE. ML:1.5 0.0001903187 2.0352 AML other m 2021-05-08T17:45:10.87
IV.GAVE.HNN. ML:1.5 0.00018893495 1.3696 AML other m 2021-05-08T17:45:18.49
IV.RM33.HNE. ML:1.4 0.00011859951999999999 1.4208 AML other m 2021-05-08T17:45:11.10
IV.RM33.HNN. ML:1.4 0.000127180635 0.2048 AML other m 2021-05-08T17:45:10.50
IV.CSP1.EHE. ML:1.2 0.00006777986499999999 0.32 AML other m 2021-05-08T17:45:13.33
IV.CSP1.EHN. ML:1.3 0.00007688113499999999 0.1792 AML other m 2021-05-08T17:45:12.60
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download