Earthquake with magnitude of ML 0.4 on date 15-11-2018 and time 23:50:02 (Italy) in region 2 km SE Accumoli (RI)

A magnitude ML 0.4 earthquake occured in region: 2 km SE Accumoli (RI), on

  • 15-11-2018 22:50:02 (UTC)
  • 15-11-2018 23:50:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.69, 13.26 at 12 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
Accumoli RI 2 667 667
Amatrice RI 7 2657 3324
Arquata del Tronto AP 10 1178 4502
Cittareale RI 11 482 4984
Acquasanta Terme AP 15 2916 7900
Campotosto AQ 17 542 8442
Montereale AQ 18 2581 11023
Norcia PG 18 4957 15980
Montegallo AP 19 523 16503
Capitignano AQ 19 665 17168

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Teramo (54892 inhabitants)
39 Km N of L'Aquila (69753 inhabitants)
52 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
89 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
Rev 1000 ML 0.4 2018-11-15
22:50:02
42.69 13.26 13 2019-06-04
09:16:04
Bollettino Sismico Italiano INGV 64299831
Rev 100 ML 0.3 2018-11-15
22:50:02
42.68 13.26 12 2018-11-15
22:57:38
Sala Sismica INGV-Roma 63105731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-15 22:50:02 ± 0.06
Latitude 42.69 ± 0.00
Longitude 13.26 ± 0.00
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 64299831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 292
Semi-minor axis of confidence ellipse (meter) 291
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.2707
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 64299831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-28 10:29:46

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 63105731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-15 22:57:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2018-11-15T22:50:12.13 0.1 undecidable manual S 104 0.259 95 -0.23 94
IV.GAVE.HNZ. 2018-11-15T22:50:12.66 0.1 undecidable manual S 272 0.2707 95 -0.04 97
IV.MC2.EHZ. 2018-11-15T22:50:11.13 0.3 undecidable manual S 347 0.232 96 -0.44 68
IV.MMO1.EHZ. 2018-11-15T22:50:11.50 0.1 undecidable manual S 13 0.2185 97 0.32 93
IV.LNSS.HHZ. 2018-11-15T22:50:10.43 0.1 undecidable manual S 243 0.1826 101 0.3 94
IV.RM33.EHZ. 2018-11-15T22:50:09.82 0.1 undecidable manual S 191 0.1799 101 -0.22 95
IV.NRCA.HNZ. 2018-11-15T22:50:09.97 0.1 undecidable manual S 324 0.1835 100 -0.17 96
IV.GAVE.HNZ. 2018-11-15T22:50:08.13 0.1 undecidable manual P 272 0.2707 95 -0.14 95
IV.TERO.HHZ. 2018-11-15T22:50:08.10 0.1 undecidable manual P 104 0.259 95 0.02 98
IV.MTRA.EHZ. 2018-11-15T22:50:08.33 0.1 undecidable manual S 54 0.1214 116 -0.07 100
IV.MMO1.EHZ. 2018-11-15T22:50:07.45 0.1 positive manual P 13 0.2185 97 0.06 98
IV.MC2.EHZ. 2018-11-15T22:50:07.80 0.1 undecidable manual P 347 0.232 96 0.18 95
IV.SMA1.EHZ. 2018-11-15T22:50:07.30 0.3 undecidable manual S 136 0.0773 135 -0.03 76
IV.NRCA.HNZ. 2018-11-15T22:50:06.77 0.1 undecidable manual P 324 0.1835 100 -0.02 99
IV.T1299.HNZ. 2018-11-15T22:50:06.82 0.3 undecidable manual S 164 0.0531 147 -0.06 76
IV.LNSS.HHZ. 2018-11-15T22:50:06.68 0.1 positive manual P 243 0.1826 101 -0.1 97
IV.RM33.EHZ. 2018-11-15T22:50:06.70 0.1 positive manual P 191 0.1799 101 -0.03 99
IV.SMA1.EHZ. 2018-11-15T22:50:05.33 0.1 undecidable manual P 136 0.0773 135 0.16 98
IV.MTRA.EHZ. 2018-11-15T22:50:05.93 0.1 positive manual P 54 0.1214 116 0.14 98
IV.T1299.HNZ. 2018-11-15T22:50:05.11 0.1 negative manual P 164 0.0531 147 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:0.5 3.09279895E-5 0.6656 AML other m 2018-11-15T22:50:08.63
IV.MTRA.EHN. ML:0.2 1.6946969E-5 0.9088 AML other m 2018-11-15T22:50:08.44
IV.RM33.EHN. ML:0.3 1.5982905E-5 0.6016 AML other m 2018-11-15T22:50:10.36
IV.RM33.EHE. ML:0.3 1.717501E-5 0.2208 AML other m 2018-11-15T22:50:10.98
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download