Earthquake with magnitude of ML 1.5 on date 25-09-2020 and time 09:17:47 (UTC) in region 5 km W Amatrice (RI)

A magnitude ML 1.5 earthquake occured in region: 5 km W Amatrice (RI), on

  • 25-09-2020 09:17:47 (UTC)
  • 25-09-2020 11:17:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6330, 13.2330 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.

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 5 2657 2657
Cittareale RI 6 482 3139
Accumoli RI 7 667 3806
Montereale AQ 12 2581 6387
Capitignano AQ 14 665 7052
Campotosto AQ 14 542 7594
Borbona RI 16 617 8211
Posta RI 16 694 8905
Arquata del Tronto AP 17 1178 10083
Cagnano Amiterno AQ 19 1369 11452

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
83 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
95 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 1.5 2020-09-25
09:17:47
42.6332 13.2327 13 2021-02-26
14:55:58
Bollettino Sismico Italiano INGV 83581661
Reviewed
Rev100
ML 1.7 2020-09-25
09:17:47
42.6308 13.2263 12 2020-09-25
09:30:26
Sala Sismica INGV-Roma 83231981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-25 09:17:47 ± 0.12
Latitude 42.6332 ± 0.0045
Longitude 13.2327 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83581661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 447
Semi-minor axis of confidence ellipse (meter) 134
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25541
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 83231981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-25 09:30:26

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 83581661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-26 11:17:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2020-09-25T09:18:44.38 3.0 undecidable manual P 1.162 0
IV.ILOS.HNZ. 2020-09-25T09:18:41.68 3.0 positive manual P -9.99 0
CR.STON.BHZ. 2020-09-25T09:18:26.40 3.0 undecidable manual P -9.99 0
IV.PTRJ.HNZ. 2020-09-25T09:18:17.04 3.0 undecidable manual P 0.76 0
IV.ROSPO.HHZ. 2020-09-25T09:18:08.67 3.0 undecidable manual P -2.99 0
IV.GAVE.EHZ. 2020-09-25T09:17:57.56 0.1 undecidable manual S 283 28.3494 97 -0.03 95
IV.STAL.HHZ. 2020-09-25T09:17:55.88 3.0 undecidable manual Sg 1.45 0
IV.LNSS.HHZ. 2020-09-25T09:17:54.33 0.1 undecidable manual S 258 16.0728 112 -0.07 96
IV.RM33.EHZ. 2020-09-25T09:17:53.78 0.1 undecidable manual S 186 13.875 118 -0.08 97
IV.GAVE.EHZ. 2020-09-25T09:17:53.32 0.1 undecidable manual P 283 28.3494 97 -0.02 96
IV.SMA1.EHZ. 2020-09-25T09:17:52.73 0.1 undecidable manual S 92 8.3805 138 0.01 100
IV.RM33.EHZ. 2020-09-25T09:17:51.28 0.1 undecidable manual P 186 13.875 118 0.1 97
IV.MTRA.HNZ. 2020-09-25T09:17:51.76 0.1 undecidable manual P 44 19.1697 106 -0.18 95
IV.LNSS.HHZ. 2020-09-25T09:17:51.61 0.1 undecidable manual P 258 16.0728 112 0.12 97
IV.SAP2.EHZ. 2020-09-25T09:17:50.94 3.0 positive manual P -6.4 0
IV.SMA1.EHZ. 2020-09-25T09:17:50.61 0.1 undecidable manual P 92 8.3805 138 0.09 98
IV.MURB.HHZ. 2020-09-25T09:17:50.55 3.0 negative manual P -9.99 0
OX.FUSE.HHZ. 2020-09-25T09:17:48.82 3.0 undecidable manual Sn -9.99 0
GU.CIRO.HHZ. 2020-09-25T09:17:39.63 3.0 undecidable manual S -9.99 0
IV.SBPO.HNZ. 2020-09-25T09:17:27.35 3.0 undecidable manual Sg -0.5 0
CH.FUSIO.HHZ. 2020-09-25T09:17:26.42 3.0 undecidable manual Sg -1.1 0
IV.PII.HHZ. 2020-09-25T09:17:24.71 3.0 negative manual P -9.99 0
GU.CIRO.HHZ. 2020-09-25T09:17:21.06 3.0 undecidable manual P -9.99 0
CH.BNALP.HHZ. 2020-09-25T09:17:19.45 3.0 undecidable manual P -9.99 0
IV.FIU.EHZ. 2020-09-25T09:17:15.56 3.0 positive manual P -9.99 0
GU.GSCL.HHZ. 2020-09-25T09:17:14.62 3.0 undecidable manual P -9.99 0
IV.NDIM.HNZ. 2020-09-25T09:17:09.35 3.0 positive manual P -9.99 0
IV.SARZ.HNZ. 2020-09-25T09:17:07.27 3.0 undecidable manual P -9.99 0
IV.VARE.HHZ. 2020-09-25T09:17:03.83 3.0 undecidable manual P -9.99 0
IV.MAGA.HHZ. 2020-09-25T09:17:02.45 3.0 undecidable manual P -9.99 0
ST.RONC.HNZ. 2020-09-25T09:17:01.05 3.0 undecidable manual P -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.6 0.00045306934999999997 0.1152 AML other m 2020-09-25T09:17:52.89
IV.SMA1.EHE. ML:1.9 0.0008481939 0.1792 AML other m 2020-09-25T09:17:53.09
IV.LNSS.HHN. ML:1.4 0.00021234554999999998 0.16 AML other m 2020-09-25T09:17:54.57
IV.LNSS.HNE. ML:1.4 0.000181363445 0.128 AML other m 2020-09-25T09:17:54.67
IV.LNSS.HHE. ML:1.4 0.00020649715 0.1216 AML other m 2020-09-25T09:17:54.67
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