Earthquake with magnitude of ML 2.2 on date 31-08-2017 and time 18:57:09 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.2 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 31-08-2017 16:57:09 (UTC)
  • 31-08-2017 18:57:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5270, 15.5360 at 91 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
37 Km N of Messina (238439 inhabitants)
47 Km N of Reggio di Calabria (183035 inhabitants)
84 Km SW of Lamezia Terme (70714 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 2.2 2017-08-31
16:57:09
38.5273 15.5363 91 2018-07-06
15:40:35
Bollettino Sismico Italiano INGV 51447621
Reviewed
Rev100
ML 2.1 2017-08-31
16:57:09
38.5257 15.5348 92 2017-08-31
17:16:14
Sala Sismica INGV-Roma 49548801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-31 16:57:09 ± 0.21
Latitude 38.5273 ± 0.0099
Longitude 15.5363 ± 0.0149
Depth (km) 91 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 51447621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1258
Semi-minor axis of confidence ellipse (meter) 868
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 1260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.28963
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 38
Type of magnitude ML
Reference to an origin 51447621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-30 10:31:17

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 26
Type of magnitude ML
Reference to an origin 49548801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-31 17:16:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2017-08-31T16:59:07.57 3.0 positive manual Pg 26.43 0
IV.MMO1.EHZ. 2017-08-31T16:59:06.65 3.0 undecidable manual Sn -2.81 0
IV.PIEI.HHZ. 2017-08-31T16:58:45.36 3.0 negative manual Pg 17.76 0
IV.MIDA.HHZ. 2017-08-31T16:58:34.37 3.0 undecidable manual Sn -1.02 0
IV.VBKN.HHZ. 2017-08-31T16:58:27.57 3.0 undecidable manual Sg 11.49 0
IV.TERO.HHZ. 2017-08-31T16:58:24.63 3.0 undecidable manual Pg 12.59 0
IV.T1299.EHZ. 2017-08-31T16:58:14.07 3.0 positive manual Pn 0.71 0
IV.VENT.EHZ. 2017-08-31T16:58:04.70 3.0 positive manual Pg 13.82 0
IV.ALJA.HHZ. 2017-08-31T16:57:56.33 3.0 undecidable manual Sn -0.36 0
MN.CUC.HHZ. 2017-08-31T16:57:54.15 3.0 undecidable manual Sn -0.34 0
IV.MCRV.HHZ. 2017-08-31T16:57:53.26 3.0 undecidable manual Pg 8.95 0
IV.SSY.HHZ. 2017-08-31T16:57:52.66 3.0 undecidable manual Sn -1.1 0
IV.HLNI.HHZ. 2017-08-31T16:57:49.63 0.6 undecidable manual S 204 143.1456 116 -0.55 36
IV.AMUR.HHZ. 2017-08-31T16:57:47.83 3.0 positive manual Pn -0.15 0
IV.CELI.HHZ. 2017-08-31T16:57:47.93 0.3 undecidable manual S 41 128.2716 119 0.57 55
IV.NOCI.HHZ. 2017-08-31T16:57:47.70 3.0 undecidable manual Pn -0.86 0
IV.CET2.HHZ. 2017-08-31T16:57:44.61 0.6 undecidable manual S 18 116.7942 122 -0.62 36
IV.LTRZ.EHZ. 2017-08-31T16:57:44.53 3.0 negative manual Pn -0.68 0
GE.MATE.HHZ. 2017-08-31T16:57:44.83 3.0 positive manual Pn -0.41 0
IV.ALJA.HHZ. 2017-08-31T16:57:42.77 3.0 negative manual Pg 7.12 0
IV.CAR1.HHZ. 2017-08-31T16:57:41.63 0.3 undecidable manual S 36 99.4227 127 -0.51 59
BA.PZUN.HHZ. 2017-08-31T16:57:41.52 3.0 positive manual Pn -1.1 0
IV.PLAC.HHZ. 2017-08-31T16:57:38.99 0.3 undecidable manual S 96 78.7656 134 0.22 66
IV.AIO.HHE. 2017-08-31T16:57:37.75 0.3 undecidable manual S 203 67.0773 139 0.71 59
IV.SOI.EHZ. 2017-08-31T16:57:36.92 0.6 undecidable manual S 138 67.5768 139 -0.19 46
IV.MILZ.HHZ. 2017-08-31T16:57:33.70 0.3 undecidable manual S 223 38.8278 154 0.01 74
IV.HLNI.HHZ. 2017-08-31T16:57:32.33 0.3 undecidable manual P 204 143.1456 116 -0.58 53
IV.MSRU.HHZ. 2017-08-31T16:57:32.81 0.3 undecidable manual S 185 29.3484 160 -0.08 74
IV.JOPP.HHZ. 2017-08-31T16:57:32.67 0.3 undecidable manual S 74 31.5462 159 -0.39 69
IV.CELI.HHZ. 2017-08-31T16:57:31.52 0.1 undecidable manual P 41 128.2716 119 0.24 79
IV.CET2.HHZ. 2017-08-31T16:57:29.95 0.1 undecidable manual P 18 116.7942 122 -0.1 84
IV.CAR1.HHZ. 2017-08-31T16:57:28.06 0.1 undecidable manual P 36 99.4227 127 -0.21 85
IV.PLAC.HHZ. 2017-08-31T16:57:26.35 0.1 undecidable manual P 96 78.7656 134 0.04 91
IV.AIO.HHE. 2017-08-31T16:57:26.06 0.6 undecidable manual P 203 67.0773 139 0.74 39
IV.SOI.EHZ. 2017-08-31T16:57:25.34 0.3 undecidable manual P 138 67.5768 139 -0.02 71
IV.IVPL.HHZ. 2017-08-31T16:57:24.55 0.1 undecidable manual P 251 51.1155 147 0.42 89
IV.MILZ.HHZ. 2017-08-31T16:57:23.51 0.1 negative manual P 223 38.8278 154 0.13 97
IV.MSRU.HHZ. 2017-08-31T16:57:22.87 0.1 negative manual P 185 29.3484 160 -0.05 100
IV.JOPP.HHZ. 2017-08-31T16:57:22.92 0.1 negative manual P 74 31.5462 159 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:2.3 0.00019990515 0.12 AML other m 2017-08-31T16:57:33.20
IV.JOPP.HHE. ML:2.1 0.0001433748 0.2 AML other m 2017-08-31T16:57:33.46
IV.MSRU.HHN. ML:2.4 0.0002788336 0.24 AML other m 2017-08-31T16:57:33.84
IV.MSRU.HHE. ML:2.4 0.0002842777 0.28 AML other m 2017-08-31T16:57:33.99
IV.MILZ.HHN. ML:2.6 0.00041410464999999994 0.3 AML other m 2017-08-31T16:57:34.14
IV.MILZ.HHE. ML:2.5 0.0003342932 0.24 AML other m 2017-08-31T16:57:34.17
IV.IVPL.HHN. ML:2.5 0.00032717715000000005 0.28 AML other m 2017-08-31T16:57:38.22
IV.ILLI.HHN. ML:2.8 0.0006549155499999999 0.64 AML other m 2017-08-31T16:57:40.01
IV.SOI.EHE. ML:1.5 0.000025574670000000002 1.5 AML other m 2017-08-31T16:57:40.89
IV.IVPL.HHE. ML:2.6 0.00038224164999999997 1.38 AML other m 2017-08-31T16:57:40.30
IV.ILLI.HHE. ML:2.7 0.0004759947 0.5 AML other m 2017-08-31T16:57:40.38
IV.CAR1.HHN. ML:2.0 0.000053971284999999995 0.36 AML other m 2017-08-31T16:57:43.31
IV.PLAC.HNE. ML:1.8 0.000051373635 1.08 AML other m 2017-08-31T16:57:43.69
IV.CAR1.HHE. ML:1.9 0.00004305755 0.2 AML other m 2017-08-31T16:57:44.33
IV.CET2.HHE. ML:2.4 0.0001392832 0.18 AML other m 2017-08-31T16:57:45.56
IV.CET2.HHN. ML:2.4 0.00011974844499999999 0.36 AML other m 2017-08-31T16:57:45.87
BA.PZUN.HHE. ML:2.7 0.00008954754000000001 0.22 AML other m 2017-08-31T16:57:48.24
IV.AMUR.HHE. ML:2.1 0.000016007225 0.52 AML other m 2017-08-31T16:57:49.43
IV.HLNI.HHE. ML:1.6 0.0000170393575 0.12 AML other m 2017-08-31T16:57:50.53
IV.NOCI.HHN. ML:2.3 0.000027022579999999996 0.64 AML other m 2017-08-31T16:57:50.66
IV.CELI.HNE. ML:1.8 0.000031444025 0.94 AML other m 2017-08-31T16:57:50.23
IV.PLAC.HHN. ML:1.5 0.00002408246 1.42 AML other m 2017-08-31T16:57:50.21
IV.CELI.HHN. ML:1.8 0.000031104015 1.26 AML other m 2017-08-31T16:57:51.05
IV.SOI.EHN. ML:1.4 0.0000187620435 0.76 AML other m 2017-08-31T16:57:51.67
IV.CAR1.HNN. ML:2.3 0.0001366462 0.79 AML other m 2017-08-31T16:57:51.88
IV.PLAC.HHE. ML:1.6 0.000030277865 0.64 AML other m 2017-08-31T16:57:54.85
BA.PZUN.HHN. ML:2.6 0.000071976125 0.1 AML other m 2017-08-31T16:57:56.50
IV.AMUR.HHN. ML:2.2 0.00001758251 0.86 AML other m 2017-08-31T16:58:03.60
IV.CAR1.HNE. ML:2.3 0.0001216015 0.96 AML other m 2017-08-31T16:58:05.52
IV.ALJA.HHE. ML:2.9 0.0002184082 0.08 AML other m 2017-08-31T16:58:05.71
IV.ALJA.HHN. ML:2.8 0.00020568025 0.08 AML other m 2017-08-31T16:58:05.81
IV.NOCI.HHE. ML:2.2 0.000018108099999999997 0.66 AML other m 2017-08-31T16:58:05.64
IV.HLNI.HHN. ML:1.7 0.000017986130000000003 0.58 AML other m 2017-08-31T16:58:06.61
IV.CELI.HHE. ML:1.9 0.000036324805 0.54 AML other m 2017-08-31T16:58:12.63
IV.LTRZ.EHE. ML:2.1 0.00001942346 1.12 AML other m 2017-08-31T16:58:25.77
GE.MATE.HHN. ML:2.0 0.00001675395 0.58 AML other m 2017-08-31T16:58:25.60
GE.MATE.HHE. ML:2.0 0.000012786426 1.5 AML other m 2017-08-31T16:58:28.21
IV.LTRZ.EHN. ML:3.2 0.00021809141699999997 0.12 AML other m 2017-08-31T16:58:44.37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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