Earthquake with magnitude of ML 1.1 on date 08-12-2018 and time 23:30:55 (Italy) in region 9 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 9 km SE Castelsantangelo sul Nera (MC), on

  • 08-12-2018 22:30:55 (UTC)
  • 08-12-2018 23:30:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.21 at 11 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
Castelsantangelo sul Nera MC 9 281 281
Arquata del Tronto AP 10 1178 1459
Norcia PG 10 4957 6416
Montegallo AP 11 523 6939
Montemonaco AP 13 604 7543
Ussita MC 14 444 7987
Preci PG 15 724 8711
Accumoli RI 15 667 9378
Visso MC 15 1107 10485
Montefortino FM 17 1178 11663
Acquasanta Terme AP 18 2916 14579
Bolognola MC 19 142 14721
Cascia PG 20 3217 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
55 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
92 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.1 2018-12-08
22:30:55
42.83 13.21 11 2019-06-04
09:16:19
Bollettino Sismico Italiano INGV 69169261
Rev 100 ML 1.0 2018-12-08
22:30:55
42.83 13.2 10 2018-12-08
22:43:47
Sala Sismica INGV-Roma 63777041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-08 22:30:55 ± 0.06
Latitude 42.83 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 69169261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 272
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.50812
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 69169261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-03 09:35:11

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 63777041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-08 22:43:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2018-12-08T22:31:08.45 0.6 undecidable manual S 125 0.3561 50 0.05 48
IV.RM33.EHZ. 2018-12-08T22:31:07.60 0.1 undecidable manual S 179 0.3175 50 0.34 91
IV.CAMP.HHE. 2018-12-08T22:31:07.48 0.3 undecidable manual S 153 0.3265 50 -0.06 72
IV.GAVE.EHZ. 2018-12-08T22:31:06.18 0.1 undecidable manual S 240 0.2653 50 0.47 89
IV.GUMA.HNE. 2018-12-08T22:31:05.76 0.1 undecidable manual S 22 0.2545 50 0.38 91
IV.LNSS.HNN. 2018-12-08T22:31:05.60 0.1 undecidable manual S 209 0.2545 50 0.2 95
IV.EL6.EHZ. 2018-12-08T22:31:05.49 0.3 undecidable manual P 351 0.5081 50 0 70
IV.MF5.EHE. 2018-12-08T22:31:05.93 0.1 undecidable manual S 49 0.2455 50 0.79 79
IV.FDMO.HHZ. 2018-12-08T22:31:04.08 0.1 undecidable manual S 338 0.2266 50 -0.5 89
IV.SMA1.EHZ. 2018-12-08T22:31:04.22 0.1 undecidable manual S 154 0.2176 50 -0.09 98
IT.MTCL.HGN. 2018-12-08T22:31:04.07 0.3 undecidable manual S 318 0.2257 50 -0.46 68
IV.T1299.HNZ. 2018-12-08T22:31:03.98 0.3 undecidable manual S 164 0.2005 50 0.19 72
IV.MTRA.EHZ. 2018-12-08T22:31:02.16 0.1 undecidable manual S 117 0.1565 122 -0.32 94
IV.CAMP.HHE. 2018-12-08T22:31:02.13 0.3 undecidable manual P 153 0.3265 50 -0.26 69
IV.FEMA.HNN. 2018-12-08T22:31:02.89 0.3 undecidable manual S 320 0.1772 50 -0.21 72
IV.TERO.HHZ. 2018-12-08T22:31:02.59 0.3 undecidable manual P 125 0.3561 50 -0.3 68
IV.LNSS.HNN. 2018-12-08T22:31:01.08 0.1 undecidable manual P 209 0.2545 50 -0.08 97
IV.RM33.EHZ. 2018-12-08T22:31:01.98 0.1 undecidable manual P 179 0.3175 50 -0.26 93
IV.MF5.EHE. 2018-12-08T22:31:01.17 0.1 undecidable manual P 49 0.2455 50 0.17 96
IV.GAVE.EHZ. 2018-12-08T22:31:01.28 0.1 undecidable manual P 240 0.2653 50 -0.06 98
IV.GUMA.HNE. 2018-12-08T22:31:01.33 0.1 undecidable manual P 22 0.2545 50 0.18 95
IV.MMO1.EHZ. 2018-12-08T22:31:01.03 0.1 undecidable manual S 51 0.1142 131 -0.14 99
IV.T1299.HNZ. 2018-12-08T22:31:00.28 0.3 undecidable manual P 164 0.2005 50 0.05 74
IT.MTCL.HGN. 2018-12-08T22:31:00.32 0.3 undecidable manual P 318 0.2257 50 -0.33 70
IV.NRCA.HHZ. 2018-12-08T22:31:00.12 0.1 undecidable manual S 276 0.0674 146 0.16 99
IV.FDMO.HHZ. 2018-12-08T22:31:00.33 0.1 undecidable manual P 338 0.2266 50 -0.35 92
IV.MC2.EHZ. 2018-12-08T22:31:00.72 0.1 undecidable manual S 352 0.0854 139 0.34 95
IV.SMA1.EHZ. 2018-12-08T22:31:00.37 0.1 negative manual P 154 0.2176 50 -0.16 96
IV.MTRA.EHZ. 2018-12-08T22:30:59.29 0.1 undecidable manual P 117 0.1565 122 -0.18 97
IV.FEMA.HNN. 2018-12-08T22:30:59.77 0.3 undecidable manual P 320 0.1772 50 -0.06 74
IV.MC2.EHZ. 2018-12-08T22:30:58.45 0.1 undecidable manual P 352 0.0854 139 0.19 98
IV.MMO1.EHZ. 2018-12-08T22:30:58.64 0.1 undecidable manual P 51 0.1142 131 -0.08 100
IV.NRCA.HHZ. 2018-12-08T22:30:58.20 0.1 undecidable manual P 276 0.0674 146 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.0006438484 0.0896 AML other m 2018-12-08T22:31:00.32
IV.NRCA.HNE. ML:1.6 0.0005807602 0.064 AML other m 2018-12-08T22:31:00.35
IV.NRCA.HNN. ML:1.8 0.00083288575 0.0768 AML other m 2018-12-08T22:31:00.33
IV.NRCA.HHN. ML:1.8 0.0008702134 0.064 AML other m 2018-12-08T22:31:00.33
IV.MTRA.EHN. ML:1.3 0.0001695808 0.256 AML other m 2018-12-08T22:31:02.37
IV.MTRA.EHE. ML:1.1 0.000100034285 0.1408 AML other m 2018-12-08T22:31:02.55
IV.SMA1.EHE. ML:0.8 4.07142535E-5 0.1792 AML other m 2018-12-08T22:31:04.30
IV.SMA1.EHN. ML:0.9 4.7881185E-5 0.1664 AML other m 2018-12-08T22:31:04.30
IV.FDMO.HHE. ML:0.7 2.997384E-5 0.1024 AML other m 2018-12-08T22:31:04.62
IV.FDMO.HHN. ML:0.8 3.852413E-5 0.1408 AML other m 2018-12-08T22:31:04.88
IV.GAVE.EHE. ML:0.9 3.2945064E-5 0.128 AML other m 2018-12-08T22:31:07.58
IV.GAVE.EHN. ML:0.9 4.114545E-5 0.1408 AML other m 2018-12-08T22:31:08.40
IV.RM33.EHE. ML:1.1 4.819475E-5 0.2176 AML other m 2018-12-08T22:31:08.55
IV.TERO.HHN. ML:1.1 4.5046065E-5 0.1536 AML other m 2018-12-08T22:31:08.52
IV.TERO.HHE. ML:1.1 4.243882E-5 0.1152 AML other m 2018-12-08T22:31:08.69
IV.RM33.EHN. ML:1 3.7960145E-5 1.7952 AML other m 2018-12-08T22:31:09.95
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