Earthquake with magnitude of ML 0.9 on date 30-09-2020 and time 12:17:18 (UTC) in region 3 km E Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 3 km E Amatrice (RI), on

  • 30-09-2020 12:17:18 (UTC)
  • 30-09-2020 14:17:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6280, 13.3250 at 7 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
Amatrice RI 3 2657 2657
Campotosto AQ 9 542 3199
Accumoli RI 10 667 3866
Capitignano AQ 12 665 4531
Montereale AQ 13 2581 7112
Cittareale RI 14 482 7594
Cortino TE 15 656 8250
Crognaleto TE 16 1297 9547
Arquata del Tronto AP 16 1178 10725
Acquasanta Terme AP 17 2916 13641
Rocca Santa Maria TE 18 537 14178
Valle Castellana TE 19 977 15155
Fano Adriano TE 19 296 15451
Barete AQ 20 737 16188

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of L'Aquila (69753 inhabitants)
31 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
76 Km W of Chieti (51815 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
93 Km SE of Perugia (166134 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 0.9 2020-09-30
12:17:18
42.6277 13.3247 7 2021-02-26
14:56:12
Bollettino Sismico Italiano INGV 85790411
Reviewed
Rev100
ML 0.9 2020-09-30
12:17:18
42.619 13.3478 10 2020-09-30
12:28:13
Sala Sismica INGV-Roma 83387881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-30 12:17:18 ± 0.05
Latitude 42.6277 ± 0.0018
Longitude 13.3247 ± 0.0024
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85790411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 180
Semi-minor axis of confidence ellipse (meter) 18
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00809
Epicentral distance of station farthest from the epicenter (degree) 0.25721
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 85790411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 12:00:15

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 83387881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-30 12:28:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-09-30T12:17:28.91 0.3 undecidable manual S 323 28.5492 103 -0.04 73
IV.LNSS.HNZ. 2020-09-30T12:17:27.17 0.6 undecidable manual S 263 23.3544 106 -0.03 49
IV.TERO.HHZ. 2020-09-30T12:17:26.90 0.3 undecidable manual S 91 22.755 106 -0.12 72
IV.RM33.EHZ. 2020-09-30T12:17:24.86 0.3 undecidable manual S 214 15.9729 113 0.09 74
IV.NRCA.HHZ. 2020-09-30T12:17:24.64 0.3 undecidable manual P 323 28.5492 103 0 73
IV.MTRA.EHZ. 2020-09-30T12:17:24.74 0.6 undecidable manual S 22 15.4734 113 0.12 49
IV.LNSS.HNZ. 2020-09-30T12:17:23.49 0.3 undecidable manual P 263 23.3544 106 -0.15 72
IV.TERO.HHZ. 2020-09-30T12:17:23.42 0.3 undecidable manual P 91 22.755 106 -0.11 73
IV.CAMP.HHE. 2020-09-30T12:17:23.62 0.6 undecidable manual S 146 12.2766 118 0 50
IV.MTRA.EHZ. 2020-09-30T12:17:22.21 0.1 undecidable manual P 22 15.4734 113 0.07 99
IV.RM33.EHZ. 2020-09-30T12:17:22.24 0.1 undecidable manual P 214 15.9729 113 0.01 100
IV.SMA1.EHZ. 2020-09-30T12:17:21.03 0.6 undecidable manual S 70 0.8991 172 -0.08 51
IV.CAMP.HHE. 2020-09-30T12:17:21.61 0.1 undecidable manual P 146 12.2766 118 0.04 100
IV.T1299.HNN. 2020-09-30T12:17:21.23 0.3 undecidable manual S 282 3.4965 152 -0.16 74
IV.T1299.HNN. 2020-09-30T12:17:20.40 0.1 undecidable manual P 282 3.4965 152 0.12 100
IV.SMA1.EHZ. 2020-09-30T12:17:20.25 0.1 undecidable manual P 70 0.8991 172 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:0.9 0.00009085 0.08 AML other m 2020-09-30T12:17:24.88
IV.RM33.EHN. ML:0.8 0.00005835 1.4 AML other m 2020-09-30T12:17:25.23
IV.MTRA.EHN. ML:0.7 0.00005599999999999999 1.18 AML other m 2020-09-30T12:17:25.88
IV.RM33.EHE. ML:0.8 0.0000612 0.52 AML other m 2020-09-30T12:17:25.92
IV.TERO.HHN. ML:1.2 0.0001045 0.28 AML other m 2020-09-30T12:17:27.04
IV.TERO.HHE. ML:1.1 0.00008145 0.26 AML other m 2020-09-30T12:17:27.12
IV.NRCA.HHN. ML:0.8 0.0000329 1.24 AML other m 2020-09-30T12:17:29.17
IV.NRCA.HHE. ML:1.0 0.0000537 0.68 AML other m 2020-09-30T12:17:37.36
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