Earthquake with magnitude of ML 2.1 on date 30-01-2018 and time 23:29:14 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 30-01-2018 23:29:14 (UTC)
  • 31-01-2018 00:29:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.5800, 12.3860 at 32 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km N of Trapani (68759 inhabitants)
87 Km N of Marsala (83194 inhabitants)
100 Km NW of Palermo (674435 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 2.1 2018-01-30
23:29:14
38.5797 12.3863 32 2019-04-24
14:49:33
Bollettino Sismico Italiano INGV 56999381
Reviewed
Rev100
ML 2.1 2018-01-30
23:29:15
38.5455 12.4573 32 2018-01-31
00:01:19
Sala Sismica INGV-Roma 53565271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-01-30 23:29:14 ± 0.22
Latitude 38.5797 ± 0.0090
Longitude 12.3863 ± 0.0127
Depth (km) 32 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56999381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1389
Semi-minor axis of confidence ellipse (meter) 153
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 313
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 268
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.54863
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 56999381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-07-08 00:16:30

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 53565271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-01-31 00:01:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.STV.HHZ. 2018-01-30T23:30:55.10 3.0 positive manual Pn 0.76 0
IV.SOLUN.HHZ. 2018-01-30T23:29:46.90 0.6 undecidable manual S 118 113.4975 54 -0.12 45
IV.CORL.HHZ. 2018-01-30T23:29:46.56 0.6 undecidable manual S 133 110.3118 54 0.22 46
IV.CRJA.HHZ. 2018-01-30T23:29:44.55 0.3 undecidable manual S 148 101.7204 54 0.05 72
IV.MARS.EHZ. 2018-01-30T23:29:42.86 0.6 undecidable manual S 170 92.9403 105 0.47 45
IV.PETRA.HHZ. 2018-01-30T23:29:40.21 0.6 undecidable manual P 118 171.8946 54 -0.29 37
IV.PLLN.EHZ. 2018-01-30T23:29:39.55 0.6 undecidable manual P 113 166.2114 54 -0.25 38
IV.ALJA.HHZ. 2018-01-30T23:29:37.49 0.6 undecidable manual P 127 150.738 54 -0.37 40
IV.USI.HHZ. 2018-01-30T23:29:36.60 0.3 undecidable manual S 78 70.1742 110 0.05 75
MN.CLTB.HHZ. 2018-01-30T23:29:35.85 1.0 undecidable manual P 147 132.6672 54 0.24 21
IV.ERC.EHZ. 2018-01-30T23:29:34.47 0.3 undecidable manual S 164 62.5929 112 -0.21 73
IV.MMGO.HHZ. 2018-01-30T23:29:33.35 0.6 undecidable manual P 153 114.0969 54 0.04 46
IV.SOLUN.HHZ. 2018-01-30T23:29:33.17 1.0 undecidable manual P 118 113.4975 54 -0.06 23
IV.CRJA.HHZ. 2018-01-30T23:29:32.00 0.6 undecidable manual P 148 101.7204 54 0.23 45
IV.CAVT.HHZ. 2018-01-30T23:29:32.44 0.6 undecidable manual P 162 105.0171 54 0.26 45
IV.CORL.HHZ. 2018-01-30T23:29:32.69 0.6 undecidable manual P 133 110.3118 54 -0.15 46
IV.MARS.EHZ. 2018-01-30T23:29:31.01 1.0 undecidable manual P 170 92.9403 105 0.45 22
IV.USI.HHZ. 2018-01-30T23:29:27.21 0.6 undecidable manual P 78 70.1742 110 0.03 50
IV.ERC.EHZ. 2018-01-30T23:29:25.94 0.1 undecidable manual P 164 62.5929 112 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.USI.HHE. ML:2.2 0.00023795640000000002 0.3712 AML other m 2018-01-30T23:29:37.22
IV.USI.HHN. ML:2.5 0.0005243153999999999 0.4224 AML other m 2018-01-30T23:29:41.83
IV.CRJA.HHN. ML:1.7 0.000051940835 0.5248 AML other m 2018-01-30T23:29:49.66
IV.CRJA.HHE. ML:2.0 0.000085208555 1.1296 AML other m 2018-01-30T23:29:57.84
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
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