Earthquake with magnitude of ML 1.2 on date 09-12-2018 and time 08:39:49 (Italy) in region 2 km NE Acquasanta Terme (AP)

A magnitude ML 1.2 earthquake occured in region: 2 km NE Acquasanta Terme (AP), on

  • 09-12-2018 07:39:49 (UTC)
  • 09-12-2018 08:39:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.78, 13.43 at 18 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
Acquasanta Terme AP 2 2916 2916
Valle Castellana TE 8 977 3893
Roccafluvione AP 10 2010 5903
Montegallo AP 10 523 6426
Arquata del Tronto AP 11 1178 7604
Venarotta AP 12 2066 9670
Palmiano AP 13 196 9866
Rocca Santa Maria TE 13 537 10403
Ascoli Piceno AP 14 49407 59810
Montemonaco AP 16 604 60414
Folignano AP 17 9241 69655
Accumoli RI 18 667 70322
Cortino TE 19 656 70978
Civitella del Tronto TE 19 5116 76094
Montefortino FM 19 1178 77272
Comunanza AP 20 3166 80438

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Teramo (54892 inhabitants)
48 Km N of L'Aquila (69753 inhabitants)
62 Km E of Foligno (57155 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
69 Km E of Terni (111501 inhabitants)
73 Km W of Pescara (121014 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
92 Km E of Perugia (166134 inhabitants)
93 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
Rev 1000 ML 1.2 2018-12-09
07:39:49
42.78 13.43 18 2019-06-04
09:16:11
Bollettino Sismico Italiano INGV 67189461
Rev 100 ML 1.6 2018-12-09
07:39:48
42.79 13.44 22 2018-12-09
07:55:02
Sala Sismica INGV-Roma 63782381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-09 07:39:49 ± 0.08
Latitude 42.78 ± 0.00
Longitude 13.43 ± 0.01
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67189461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 417
Semi-minor axis of confidence ellipse (meter) 347
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.73115
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 63782381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-09 07:55:02

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 67189461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-02 12:46:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2018-12-09T07:41:25.85 3.0 undecidable manual Sn 0.7 0
AC.SRN.HHZ. 2018-12-09T07:41:24.37 3.0 undecidable manual Pg 12.58 0
IV.CAR1.HHZ. 2018-12-09T07:41:21.21 3.0 undecidable manual Sn -9.99 0
IV.MSSA.HHZ. 2018-12-09T07:41:16.52 3.0 undecidable manual Sg 9.52 0
IV.MAGA.HHZ. 2018-12-09T07:41:11.68 3.0 undecidable manual Sn -7.71 0
IV.CORL.HHZ. 2018-12-09T07:41:06.65 3.0 undecidable manual Pg 10.98 0
GU.GRAM.HHZ. 2018-12-09T07:40:58.56 3.0 undecidable manual Sn -3.05 0
IV.MCRV.HHZ. 2018-12-09T07:40:55.49 3.0 undecidable manual Sg 1.77 0
IV.CAFE.HHZ. 2018-12-09T07:40:51.24 3.0 undecidable manual Sg 1.13 0
IV.PAOL.HHZ. 2018-12-09T07:40:45.03 3.0 undecidable manual Sg 2.83 0
IV.ZONE.HHZ. 2018-12-09T07:40:45.90 3.0 undecidable manual Pg 4.88 0
CR.STON.BHZ. 2018-12-09T07:40:37.22 3.0 positive manual Pn -0.03 0
IV.MSSA.HHZ. 2018-12-09T07:40:33.03 3.0 undecidable manual Pn 1.49 0
GU.GSCL.HHZ. 2018-12-09T07:40:26.81 3.0 undecidable manual Pg 3.45 0
IT.PLTA.HNZ. 2018-12-09T07:40:20.41 3.0 undecidable manual Sn -9.99 0
TV.SF04.EHZ. 2018-12-09T07:40:03.00 3.0 positive manual Pg -1.06 0
IV.GIGS.HHN. 2018-12-09T07:40:02.05 0.6 undecidable manual S 162 0.3453 106 -0.25 47
IV.LNSS.HHZ. 2018-12-09T07:40:02.40 0.6 undecidable manual S 238 0.339 106 0.29 46
IV.RM33.HNZ. 2018-12-09T07:40:01.66 0.6 undecidable manual S 210 0.3166 107 0.17 47
IV.MC2.EHZ. 2018-12-09T07:39:59.04 0.6 undecidable manual S 306 0.2194 117 0.23 48
IV.NRCA.HHZ. 2018-12-09T07:39:59.40 0.1 undecidable manual S 282 0.2374 115 0.1 99
IV.CAMP.HHZ. 2018-12-09T07:39:59.78 0.3 undecidable manual S 184 0.2473 114 0.22 71
IV.TERO.HHZ. 2018-12-09T07:39:58.36 0.3 undecidable manual S 142 0.2041 120 -0.06 75
IV.MMUR.HNZ. 2018-12-09T07:39:58.64 3.0 undecidable manual P 0.7311 -4.68 0
IV.MF5.EHZ. 2018-12-09T07:39:58.71 0.3 undecidable manual S 6 0.2059 119 0.25 72
IV.GAVE.HNZ. 2018-12-09T07:39:57.59 0.3 undecidable manual P 257 0.4047 103 -0.21 70
IV.SMA1.EHZ. 2018-12-09T07:39:57.62 0.3 undecidable manual S 205 0.1682 126 0.11 74
IV.T1299.HNZ. 2018-12-09T07:39:57.73 0.6 undecidable manual S 216 0.1844 123 -0.19 49
IV.SAMA.HHZ. 2018-12-09T07:39:57.23 3.0 negative manual P -6.04 0
IV.MMO1.HNE. 2018-12-09T07:39:56.54 0.3 undecidable manual S 327 0.1394 133 -0.32 71
IV.RM33.HNZ. 2018-12-09T07:39:56.27 0.3 undecidable manual P 210 0.3166 107 -0.08 73
IV.LNSS.HHZ. 2018-12-09T07:39:56.50 0.3 undecidable manual P 238 0.339 106 -0.22 71
IV.GUMA.HNN. 2018-12-09T07:39:56.50 0.6 undecidable manual P 346 0.2887 110 0.61 43
IV.GIGS.HHN. 2018-12-09T07:39:56.55 0.3 undecidable manual P 162 0.3453 106 -0.28 70
IV.MNTP.HNE. 2018-12-09T07:39:55.76 3.0 undecidable manual P 0.3552 -1.23 0
IV.MTRA.HNE. 2018-12-09T07:39:55.17 0.6 undecidable manual S 224 0.0369 166 -0.09 51
IV.CAMP.HHZ. 2018-12-09T07:39:55.22 0.1 positive manual P 184 0.2473 114 -0.02 100
IV.MF5.EHZ. 2018-12-09T07:39:54.55 0.1 undecidable manual P 6 0.2059 119 -0.06 99
IV.MC2.EHZ. 2018-12-09T07:39:54.86 0.6 undecidable manual P 306 0.2194 117 0.05 50
IV.TERO.HHZ. 2018-12-09T07:39:54.75 0.3 undecidable manual P 142 0.2041 120 0.17 73
IV.SMA1.EHZ. 2018-12-09T07:39:54.14 0.1 undecidable manual P 205 0.1682 126 0.08 100
IV.NRCA.HHZ. 2018-12-09T07:39:54.96 0.1 undecidable manual P 282 0.2374 115 -0.13 97
IV.T1299.HNZ. 2018-12-09T07:39:54.52 0.1 undecidable manual P 216 0.1844 123 0.23 96
IV.MMO1.HNE. 2018-12-09T07:39:53.36 0.3 undecidable manual P 327 0.1394 133 -0.32 71
IV.MTRA.HNE. 2018-12-09T07:39:52.80 0.6 undecidable manual P 224 0.0369 166 0.04 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.2 0.00010065 1.74 AML other m 2018-12-09T07:39:57.04
IV.SMA1.EHE. ML:1.2 0.0001044 1.54 AML other m 2018-12-09T07:39:58.09
IV.NRCA.HHE. ML:1.4 0.00010405 0.1 AML other m 2018-12-09T07:39:59.52
IV.NRCA.HHN. ML:1.6 0.000168 0.1 AML other m 2018-12-09T07:39:59.57
IV.EL6.EHE. ML:0 0.000279 0.64 AML other m 2018-12-09T07:40:23.59
IV.EL6.EHN. ML:0 0.0002515 0.56 AML other m 2018-12-09T07:40:26.63
IV.TERO.HHN. ML:0.9 4.184763E-5 0.0768 AML other m 2018-12-09T07:39:58.57
IV.TERO.HHE. ML:0.9 4.209047E-5 0.096 AML other m 2018-12-09T07:39:59.31
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