Earthquake with magnitude of ML 1.6 on date 30-10-2020 and time 11:24:41 (Italy) in region 4 km S Arquata del Tronto (AP)

A magnitude ML 1.6 earthquake occured in region: 4 km S Arquata del Tronto (AP), on

  • 30-10-2020 10:24:41 (UTC)
  • 30-10-2020 11:24:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.737, 13.283 at 16 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.

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 4 1178 1178
Accumoli RI 5 667 1845
Acquasanta Terme AP 11 2916 4761
Amatrice RI 12 2657 7418
Montegallo AP 13 523 7941
Cittareale RI 17 482 8423
Norcia PG 17 4957 13380
Valle Castellana TE 18 977 14357
Montemonaco AP 19 604 14961

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Teramo (54892 inhabitants)
44 Km N of L'Aquila (69753 inhabitants)
53 Km E of Foligno (57155 inhabitants)
56 Km E of Terni (111501 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
100 Km S of Ancona (100861 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 1.6 2020-10-30
10:24:41
42.7367 13.2827 16 2021-02-26
14:56:09
Bollettino Sismico Italiano INGV 85194841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 10:24:41 ± 0.05
Latitude 42.7367 ± 0.0018
Longitude 13.2827 ± 0.0024
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85194841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 199
Semi-minor axis of confidence ellipse (meter) 74
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 317
Circular confidence region, given by single value of horizontal uncertainty (meter) 200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.07
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2617
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 85194841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-04 09:12:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
XK.ALB1.HNZ. 2020-10-30T10:24:57.85 3.0 undecidable manual Pn 8.16 0
XK.SELL.HHZ. 2020-10-30T10:24:56.47 3.0 undecidable manual Pn 6.14 0
IV.RNI2.HHZ. 2020-10-30T10:24:55.11 3.0 undecidable manual Sn -9.99 0
IV.TERO.HHZ. 2020-10-30T10:24:51.62 0.3 undecidable manual S 116 0.2617 105 0.02 74
IV.RM33.EHZ. 2020-10-30T10:24:50.77 0.3 undecidable manual S 192 0.2329 108 0 74
IV.CAMP.HHZ. 2020-10-30T10:24:50.50 0.3 undecidable manual S 155 0.2212 109 0.06 74
IV.LNSS.HHZ. 2020-10-30T10:24:50.47 0.3 undecidable manual S 233 0.223 109 -0.02 74
IV.OFFI.HHZ. 2020-10-30T10:24:49.87 3.0 undecidable manual Sg 2.83 0
IV.LADO.EHZ. 2020-10-30T10:24:48.57 3.0 undecidable manual Pn -1.05 0
IV.MMO1.EHZ. 2020-10-30T10:24:48.90 0.3 undecidable manual S 11 0.1655 119 -0.05 75
IV.SMA1.EHZ. 2020-10-30T10:24:47.68 0.3 undecidable manual S 160 0.1124 133 0.01 76
IV.TERO.HHZ. 2020-10-30T10:24:47.14 0.1 undecidable manual P 116 0.2617 105 -0.07 97
IV.MTRA.EHZ. 2020-10-30T10:24:47.01 0.3 undecidable manual S 76 0.0863 142 -0.11 75
IV.CAMP.HHZ. 2020-10-30T10:24:46.51 0.1 positive manual P 155 0.2212 109 -0.03 98
IV.LNSS.HHZ. 2020-10-30T10:24:46.51 0.1 positive manual P 233 0.223 109 -0.06 98
IV.RM33.EHZ. 2020-10-30T10:24:46.74 0.1 positive manual P 192 0.2329 108 0 99
IV.SMA1.EHZ. 2020-10-30T10:24:45.06 0.1 positive manual P 160 0.1124 133 0.12 99
IV.MMO1.EHZ. 2020-10-30T10:24:45.72 0.1 negative manual P 11 0.1655 119 0.04 99
IV.MTRA.EHZ. 2020-10-30T10:24:44.71 0.1 negative manual P 76 0.0863 142 0.09 100
IV.MNTT.EHZ. 2020-10-30T10:24:39.24 3.0 undecidable manual Sn -4.59 0
IV.IMTC.HHZ. 2020-10-30T10:24:27.90 3.0 negative manual Pg 14.41 0
IV.PAOL.HHZ. 2020-10-30T10:24:26.27 3.0 positive manual Pn 11.57 0
OX.SABO.HNZ. 2020-10-30T10:24:22.70 3.0 undecidable manual Sg 2.79 0
IV.RNI2.HHZ. 2020-10-30T10:24:09.93 3.0 negative manual Pn 4.96 0
IT.LRNO.HNZ. 2020-10-30T10:24:08.09 3.0 undecidable manual Pn -1.53 0
IV.BRSN.EHZ. 2020-10-30T10:23:52.10 3.0 undecidable manual Sn -9.99 0
OX.VARN.HHZ. 2020-10-30T10:23:28.49 3.0 undecidable manual P 8.42 0
CH.FUORN.HHZ. 2020-10-30T10:23:28.54 3.0 undecidable manual P 23.309999 0
IV.BRMO.HHZ. 2020-10-30T10:23:23.55 3.0 negative manual P 18.299999 0
IV.OPPE.HNZ. 2020-10-30T10:23:13.67 3.0 negative manual P 1.49 0
GU.GRAM.HHZ. 2020-10-30T10:23:10.98 3.0 undecidable manual P 2.05 0
IV.NDIM.HHZ. 2020-10-30T10:23:09.27 3.0 negative manual P -2.65 0
IV.MNTV.HNZ. 2020-10-30T10:23:07.96 3.0 negative manual P -1.43 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.8 0.00058924545 0.1792 AML other m 2020-10-30T10:24:47.09
IV.MTRA.HNE. ML:1.8 0.00054922855 0.2048 AML other m 2020-10-30T10:24:47.09
IV.MTRA.HNN. ML:1.8 0.0005928696 0.192 AML other m 2020-10-30T10:24:47.08
IV.MTRA.EHE. ML:1.8 0.00057705465 0.1984 AML other m 2020-10-30T10:24:47.10
IV.SMA1.EHN. ML:1.1 0.000106534895 0.4224 AML other m 2020-10-30T10:24:47.81
IV.SMA1.EHE. ML:1.6 0.0002989594 0.3392 AML other m 2020-10-30T10:24:47.98
IV.CAMP.HHE. ML:1.2 7.542494E-5 0.2816 AML other m 2020-10-30T10:24:50.76
IV.CAMP.HHN. ML:1 5.489393E-5 0.3392 AML other m 2020-10-30T10:24:50.75
IV.LNSS.HNE. ML:1.7 0.0002440178 0.2496 AML other m 2020-10-30T10:24:50.75
IV.LNSS.HHN. ML:1.7 0.000250157 0.3776 AML other m 2020-10-30T10:24:50.81
IV.LNSS.HNN. ML:1.6 0.0002281169 0.1984 AML other m 2020-10-30T10:24:50.82
IV.RM33.HNE. ML:2 0.00055459675 1.0176 AML other m 2020-10-30T10:24:51.80
IV.RM33.EHN. ML:1.4 0.0001175196 0.2368 AML other m 2020-10-30T10:24:52.26
IV.RM33.HNN. ML:1.9 0.00038094 0.8192 AML other m 2020-10-30T10:24:51.63
IV.RM33.EHE. ML:1 5.591156E-5 0.6016 AML other m 2020-10-30T10:24:51.18
IV.TERO.HHE. ML:1.2 7.5476825E-5 0.5824 AML other m 2020-10-30T10:24:51.80
IV.TERO.HNE. ML:1.5 0.00013539885 0.4096 AML other m 2020-10-30T10:24:51.80
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