Earthquake with magnitude of ML 1.3 on date 16-09-2020 and time 01:34:21 (UTC) in region 3 km N Accumoli (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km N Accumoli (RI), on

  • 16-09-2020 01:34:21 (UTC)
  • 16-09-2020 03:34:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7220, 13.2420 at 12 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
Accumoli RI 3 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 11 2657 4502
Cittareale RI 13 482 4984
Norcia PG 15 4957 9941
Acquasanta Terme AP 15 2916 12857
Montegallo AP 15 523 13380
Cascia PG 19 3217 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 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
Reviewed
Rev100
ML 1.3 2020-09-16
01:34:21
42.7222 13.2423 13 2020-09-16
02:04:00
Sala Sismica INGV-Roma 82941921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-16 01:34:21 ± 0.05
Latitude 42.7222 ± 0.0027
Longitude 13.2423 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82941921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 378
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 82941921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-16 02:04:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-09-16T01:34:31.24 0.6 undecidable manual S 263 28.5492 95 -0.12 48
IV.CSP1.EHZ. 2020-09-16T01:34:29.24 3.0 undecidable manual P -0.18 0
IV.LNSS.HHZ. 2020-09-16T01:34:29.32 0.6 undecidable manual S 231 21.1677 100 -0.07 49
IV.CESI.HHZ. 2020-09-16T01:34:29.25 3.0 positive manual P -0.23 0
IV.MC2.EHZ. 2020-09-16T01:34:29.76 0.6 undecidable manual S 348 21.4674 100 0.28 46
IV.GUMA.HHZ. 2020-09-16T01:34:29.15 3.0 positive manual P 0.16 0
IV.MMO1.EHN. 2020-09-16T01:34:29.35 0.6 undecidable manual S 19 20.868 100 0.04 49
IV.RM33.EHZ. 2020-09-16T01:34:29.96 0.3 undecidable manual S 185 23.754 98 -0.12 72
IV.ARRO.EHZ. 2020-09-16T01:34:29.24 3.0 undecidable manual P -0.16 0
IV.MF5.EHZ. 2020-09-16T01:34:28.58 3.0 negative manual P 0.28 0
IV.FDMO.HHZ. 2020-09-16T01:34:28.47 3.0 positive manual P -0.27 0
IV.NRCA.HHZ. 2020-09-16T01:34:27.79 0.6 undecidable manual S 320 16.1727 108 -0.32 47
IV.GAVE.EHZ. 2020-09-16T01:34:27.07 0.1 undecidable manual P 263 28.5492 95 -0.02 98
IV.SMA1.EHZ. 2020-09-16T01:34:27.63 0.6 undecidable manual S 143 12.6762 119 0.38 47
IV.TERO.HHZ. 2020-09-16T01:34:27.47 0.3 undecidable manual P 110 31.4463 94 -0.07 71
IV.MC2.EHZ. 2020-09-16T01:34:26.30 1.0 negative manual P 348 21.4674 100 0.29 23
IV.T1299.HNE. 2020-09-16T01:34:26.65 0.6 undecidable manual S 161 10.2786 128 -0.07 50
IV.RM33.EHZ. 2020-09-16T01:34:26.36 0.1 undecidable manual P 185 23.754 98 0 98
IV.MTRA.EHZ. 2020-09-16T01:34:26.99 0.3 undecidable manual S 73 13.1757 117 -0.37 69
IV.MMO1.EHN. 2020-09-16T01:34:25.96 0.1 undecidable manual P 19 20.868 100 0.05 98
IV.NRCA.HHZ. 2020-09-16T01:34:25.24 0.1 undecidable manual P 320 16.1727 108 0.03 99
IV.LNSS.HHZ. 2020-09-16T01:34:25.97 0.1 undecidable manual P 231 21.1677 100 0.01 98
IV.SMA1.EHZ. 2020-09-16T01:34:24.76 1.0 undecidable manual P 143 12.6762 119 0.04 25
IV.MTRA.EHZ. 2020-09-16T01:34:24.79 0.1 undecidable manual P 73 13.1757 117 0.01 100
IV.T1299.HNE. 2020-09-16T01:34:24.53 0.1 undecidable manual P 161 10.2786 128 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:1.6 0.00040249999999999997 0.9 AML other m 2020-09-16T01:34:27.10
IV.MTRA.EHN. ML:1.6 0.00035299999999999996 0.24 AML other m 2020-09-16T01:34:27.09
IV.MTRA.HNN. ML:1.5 0.0003265 0.24 AML other m 2020-09-16T01:34:27.09
IV.MTRA.EHE. ML:1.6 0.00037 0.46 AML other m 2020-09-16T01:34:27.55
IV.NRCA.HHE. ML:1.6 0.00035 0.06 AML other m 2020-09-16T01:34:28.00
IV.SMA1.EHN. ML:0.9 0.00006765 0.74 AML other m 2020-09-16T01:34:28.38
IV.NRCA.HHN. ML:1.4 0.000193 1.08 AML other m 2020-09-16T01:34:28.25
IV.LNSS.HHE. ML:1.1 0.00007350000000000001 0.14 AML other m 2020-09-16T01:34:29.43
IV.LNSS.HHN. ML:1.1 0.00009165 0.16 AML other m 2020-09-16T01:34:29.72
IV.RM33.EHN. ML:1.2 0.0000927 0.32 AML other m 2020-09-16T01:34:30.41
IV.RM33.EHE. ML:1.4 0.00015 0.28 AML other m 2020-09-16T01:34:30.71
IV.SMA1.EHE. ML:0.8 0.00006095 0.28 AML other m 2020-09-16T01:34:31.34
IV.TERO.HHN. ML:1.5 0.00014600000000000003 0.1 AML other m 2020-09-16T01:34:32.38
IV.TERO.HHE. ML:1.3 0.00009379999999999999 0.1 AML other m 2020-09-16T01:34:32.53
IV.FDMO.HHN. ML:1.0 0.0000332 1 AML other m 2020-09-16T01:34:34.57
IV.FDMO.HHE. ML:0.6 0.0000165 0.28 AML other m 2020-09-16T01:34:34.16
IV.GUMA.HHE. ML:1.7 0.0001875 0.26 AML other m 2020-09-16T01:34:35.38
IV.GUMA.HHN. ML:1.5 0.00011499999999999999 0.22 AML other m 2020-09-16T01:34:35.44
IV.CESI.HHN. ML:1.0 0.000029199999999999998 0.3 AML other m 2020-09-16T01:34:35.66
IV.CESI.HHE. ML:0.8 0.000018549999999999997 0.5 AML other m 2020-09-16T01:34:36.30
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