Earthquake with magnitude of ML 1.9 on date 22-04-2019 and time 23:06:58 (UTC) in region 6 km NW Pontremoli (MS)

A magnitude ML 1.9 earthquake occured in region: 6 km NW Pontremoli (MS), on

  • 22-04-2019 23:06:58 (UTC)
  • 23-04-2019 01:06:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4130, 9.8280 at 7 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
Pontremoli MS 6 7357 7357
Zeri MS 8 1094 8451
Borgo Val di Taro PR 10 6999 15450
Albareto PR 11 2156 17606
Mulazzo MS 12 2424 20030
Filattiera MS 13 2309 22339
Compiano PR 16 1112 23451
Zignago SP 16 532 23983
Villafranca in Lunigiana MS 17 4770 28753
Berceto PR 17 2109 30862
Bagnone MS 17 1887 32749
Sesta Godano SP 18 1377 34126
Tornolo PR 18 1010 35136
Valmozzola PR 18 539 35675
Bedonia PR 19 3482 39157
Rocchetta di Vara SP 19 703 39860
Calice al Cornoviglio SP 19 1138 40998
Varese Ligure SP 19 2059 43057

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of La Spezia (93959 inhabitants)
43 Km NW of Carrara (63133 inhabitants)
49 Km NW of Massa (69479 inhabitants)
59 Km SW of Parma (192836 inhabitants)
69 Km NW of Viareggio (62467 inhabitants)
71 Km E of Genova (586655 inhabitants)
71 Km W of Reggio nell'Emilia (171345 inhabitants)
72 Km S of Piacenza (102191 inhabitants)
82 Km S of Cremona (71901 inhabitants)
83 Km NW of Lucca (89046 inhabitants)
90 Km NW of Pisa (89158 inhabitants)
91 Km W of Modena (184973 inhabitants)
93 Km W of Carpi (70699 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 1.9 2019-04-22
23:06:58
44.4127 9.8282 7 2019-08-22
08:25:00
Bollettino Sismico Italiano INGV 69023401
Reviewed
Rev100
ML 1.9 2019-04-22
23:06:58
44.4082 9.8262 6 2019-04-22
23:15:31
Sala Sismica INGV-Roma 67875441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-22 23:06:58 ± 0.12
Latitude 44.4127 ± 0.0081
Longitude 9.8282 ± 0.0076
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 69023401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 850
Semi-minor axis of confidence ellipse (meter) 304
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75993
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 69023401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-30 09:15:12

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 67875441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-22 23:15:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SAMA.HHZ. 2019-04-22T23:08:39.12 3.0 undecidable manual Sg 7.72 0
IV.CPGN.EHZ. 2019-04-22T23:08:03.96 3.0 undecidable manual Sg 7.36 0
IV.MBAL.EHZ. 2019-04-22T23:07:48.60 3.0 undecidable manual S 2.18 0
IV.ZONE.HHZ. 2019-04-22T23:07:43.72 3.0 undecidable manual S -0.01 0
GU.SARM.EHZ. 2019-04-22T23:07:16.00 0.3 undecidable manual S 119 52.0035 50 0.23 69
GU.POPM.HHZ. 2019-04-22T23:07:13.25 1.0 undecidable manual P 119 84.3489 50 -0.16 22
IV.BDI.HNZ. 2019-04-22T23:07:11.59 0.3 undecidable manual P 122 72.2721 50 0.04 70
IV.PLMA.HHZ. 2019-04-22T23:07:11.80 1.0 undecidable manual S 177 40.3263 99 -0.79 20
IV.PRMA.HHE. 2019-04-22T23:07:09.79 0.6 undecidable manual P 44 54.6009 50 0.96 36
GU.SARM.EHZ. 2019-04-22T23:07:08.55 0.1 positive manual P 119 52.0035 50 0.11 95
IV.MSSA.HHZ. 2019-04-22T23:07:08.20 0.1 undecidable manual S 247 26.8509 104 0.19 98
GU.GORR.HHE. 2019-04-22T23:07:07.26 0.3 undecidable manual P 297 47.5191 50 -0.48 66
IV.BOB.HHE. 2019-04-22T23:07:07.69 0.1 undecidable manual P 323 49.5171 50 -0.36 90
IV.PLMA.HHZ. 2019-04-22T23:07:06.47 0.1 undecidable manual P 177 40.3263 99 -0.13 97
GU.GRAM.HHZ. 2019-04-22T23:07:05.80 0.3 undecidable manual S 65 20.7681 108 -0.17 74
GU.EQUI.HHE. 2019-04-22T23:07:05.60 0.1 undecidable manual P 137 37.629 100 -0.46 90
GU.FIVI.HNE. 2019-04-22T23:07:04.99 0.3 undecidable manual P 129 30.5472 102 0.32 71
IV.MSSA.HHZ. 2019-04-22T23:07:04.32 0.1 undecidable manual P 247 26.8509 104 0.37 94
GU.GRAM.HHZ. 2019-04-22T23:07:02.90 0.1 positive manual P 65 20.7681 108 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:0.0 0.0009320290499999999 0.3584 AML other m 2019-04-22T23:07:07.37
IV.MSSA.HHE. ML:0.0 0.0003305152 0.2304 AML other m 2019-04-22T23:07:08.00
IV.MSSA.HHN. ML:0.0 0.00043310485 0.2688 AML other m 2019-04-22T23:07:09.04
GU.GRAM.HHE. ML:0.0 0.001143986 0.2304 AML other m 2019-04-22T23:07:09.30
IV.PLMA.HHE. ML:0.0 0.000144893 0.256 AML other m 2019-04-22T23:07:12.68
IV.PLMA.HHN. ML:0.0 0.00013467103 0.128 AML other m 2019-04-22T23:07:12.79
GU.SARM.EHE. ML:0.0 0.00031401455 0.2816 AML other m 2019-04-22T23:07:16.74
GU.SARM.EHN. ML:0.0 0.00023761235 0.4224 AML other m 2019-04-22T23:07:16.88
GU.POPM.HHE. ML:0.0 0.00010704151 0.1792 AML other m 2019-04-22T23:07:28.41
GU.POPM.HHN. ML:0.0 0.00011429775 0.1152 AML other m 2019-04-22T23:07:29.97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download