Earthquake with magnitude of ML 2.5 on date 04-07-2019 and time 20:27:08 (Italy) in region 7 km NW Pontremoli (MS)

A magnitude ML 2.5 earthquake occured in region: 7 km NW Pontremoli (MS), on

  • 04-07-2019 18:27:08 (UTC)
  • 04-07-2019 20:27:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.43, 9.83 at 6 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 7 7357 7357
Borgo Val di Taro PR 8 6999 14356
Zeri MS 10 1094 15450
Albareto PR 10 2156 17606
Mulazzo MS 14 2424 20030
Filattiera MS 14 2309 22339
Compiano PR 15 1112 23451
Berceto PR 16 2109 25560
Valmozzola PR 16 539 26099
Tornolo PR 17 1010 27109
Bedonia PR 18 3482 30591
Zignago SP 18 532 31123
Villafranca in Lunigiana MS 18 4770 35893
Bagnone MS 18 1887 37780
Sesta Godano SP 19 1377 39157
Varese Ligure SP 19 2059 41216

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km N of La Spezia (93959 inhabitants)
45 Km NW of Carrara (63133 inhabitants)
50 Km NW of Massa (69479 inhabitants)
57 Km SW of Parma (192836 inhabitants)
70 Km S of Piacenza (102191 inhabitants)
70 Km W of Reggio nell'Emilia (171345 inhabitants)
71 Km E of Genova (586655 inhabitants)
71 Km NW of Viareggio (62467 inhabitants)
80 Km S of Cremona (71901 inhabitants)
84 Km NW of Lucca (89046 inhabitants)
91 Km W of Modena (184973 inhabitants)
92 Km NW of Pisa (89158 inhabitants)
93 Km W of Carpi (70699 inhabitants)
99 Km SE of Pavia (72576 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.5 2019-07-04
18:27:08
44.43 9.83 6 2019-11-13
14:31:05
Bollettino Sismico Italiano INGV 73177321
Reviewed
Rev100
ML 2.5 2019-07-04
18:27:08
44.45 9.84 9 2019-07-04
18:37:21
Sala Sismica INGV-Roma 70202931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-04 18:27:08 ± 0.16
Latitude 44.43 ± 0.01
Longitude 9.83 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73177321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 714
Semi-minor axis of confidence ellipse (meter) 604
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
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 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.18076
Epicentral distance of station farthest from the epicenter (degree) 2.21143
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 70202931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-04 18:37:20

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 73177321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-10 08:34:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MDI.HHZ. 2019-07-04T18:27:54.65 1.0 undecidable manual S 357 1.3409 50 2.28 6
ST.ZIAN.EHZ. 2019-07-04T18:27:47.30 0.3 undecidable manual P 33 2.2114 38 0.3 33
IV.QLNO.HHZ. 2019-07-04T18:27:44.74 0.6 undecidable manual S 265 1.063 50 0.61 38
ST.PANI.EHZ. 2019-07-04T18:27:42.69 0.3 undecidable manual P 33 1.9353 38 -0.5 39
IV.CASP.HHZ. 2019-07-04T18:27:40.41 0.3 undecidable manual P 155 1.8022 38 -0.94 36
IV.VARE.HHZ. 2019-07-04T18:27:39.48 0.6 undecidable manual P 333 1.6188 50 0.7 29
GU.ENR.HHZ. 2019-07-04T18:27:39.59 0.3 undecidable manual P 264 1.7321 38 -0.79 40
ST.RONC.EHZ. 2019-07-04T18:27:39.41 0.3 undecidable manual P 20 1.6476 38 0.2 50
ST.VARA.EHZ. 2019-07-04T18:27:38.14 0.3 undecidable manual P 28 1.5855 50 -0.08 53
IV.MAGA.HHZ. 2019-07-04T18:27:36.22 0.3 undecidable manual P 23 1.4587 50 0.18 56
IV.MBAL.EHZ. 2019-07-04T18:27:36.70 0.3 undecidable manual P 30 1.4614 50 0.62 50
IV.MDI.HHZ. 2019-07-04T18:27:35.22 0.3 undecidable manual P 357 1.3409 50 1.18 41
GU.CANO.HHZ. 2019-07-04T18:27:31.07 0.3 undecidable manual P 259 1.1583 50 0.16 62
IV.MPPT.EHZ. 2019-07-04T18:27:30.09 0.3 undecidable manual P 117 1.0207 50 1.54 36
GU.RNCA.HHZ. 2019-07-04T18:27:30.84 0.3 undecidable manual S 274 0.6259 50 -0.34 67
IV.MOCL.EHZ. 2019-07-04T18:27:30.75 0.3 undecidable manual P 113 1.0585 50 1.55 35
IV.QLNO.HHZ. 2019-07-04T18:27:29.63 0.1 undecidable manual P 265 1.063 50 0.35 81
IV.PRMA.HHZ. 2019-07-04T18:27:27.93 0.6 undecidable manual S 46 0.4802 50 1.07 35
GU.SARM.EHN. 2019-07-04T18:27:26.06 0.6 undecidable manual S 121 0.4784 50 -0.74 41
IV.PII.HHZ. 2019-07-04T18:27:26.02 0.1 undecidable manual P 144 0.8669 50 0.1 89
GU.PCP.HHZ. 2019-07-04T18:27:26.77 0.3 undecidable manual P 277 0.9209 50 -0.07 67
IV.BOB.HHZ. 2019-07-04T18:27:24.66 0.6 undecidable manual S 321 0.4326 50 -0.78 40
GU.MAIM.HHZ. 2019-07-04T18:27:23.24 0.1 undecidable manual P 137 0.7015 50 0.14 92
IV.PLMA.HHZ. 2019-07-04T18:27:23.27 0.3 undecidable manual S 177 0.3804 98 -0.51 68
GU.GORR.HHZ. 2019-07-04T18:27:23.83 0.3 undecidable manual S 295 0.42 50 -1.25 48
GU.CARD.HHZ. 2019-07-04T18:27:22.31 0.3 undecidable manual P 130 0.6187 50 0.63 62
IV.BDI.HNZ. 2019-07-04T18:27:22.19 0.3 undecidable manual P 123 0.661 50 -0.22 68
GU.EQUI.HHE. 2019-07-04T18:27:21.86 0.6 undecidable manual S 138 0.3516 98 -0.84 40
GU.RNCA.HHZ. 2019-07-04T18:27:21.76 0.1 undecidable manual P 274 0.6259 50 -0.05 95
IV.MSSA.HHZ. 2019-07-04T18:27:19.59 0.3 undecidable manual S 243 0.2491 102 0.81 62
GU.SARM.EHN. 2019-07-04T18:27:19.01 0.1 undecidable manual P 121 0.4784 50 -0.27 94
MN.VLC.HHZ. 2019-07-04T18:27:19.41 0.3 undecidable manual P 124 0.4829 50 0.05 73
IV.PRMA.HHZ. 2019-07-04T18:27:19.64 0.3 undecidable manual P 46 0.4802 50 0.33 69
GU.GORR.HHZ. 2019-07-04T18:27:17.54 0.1 undecidable manual P 295 0.42 50 -0.74 82
IV.BOB.HHZ. 2019-07-04T18:27:17.77 0.1 undecidable manual P 321 0.4326 50 -0.71 83
IV.PLMA.HHZ. 2019-07-04T18:27:17.49 0.1 undecidable manual P 177 0.3804 98 -0.04 100
GU.EQUI.HHE. 2019-07-04T18:27:16.71 0.1 undecidable manual P 138 0.3516 98 -0.19 97
GU.FIVI.HNE. 2019-07-04T18:27:15.85 0.3 undecidable manual P 132 0.2869 100 0.37 71
GU.GRAM.HHZ. 2019-07-04T18:27:15.45 0.3 undecidable manual S 70 0.1808 106 -0.79 63
IV.MSSA.HHZ. 2019-07-04T18:27:15.25 0.1 undecidable manual P 243 0.2491 102 0.61 89
GU.GRAM.HHZ. 2019-07-04T18:27:12.90 0.1 undecidable manual P 70 0.1808 106 -0.28 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHE. ML:3.1 0.009585 0.32 AML other m 2019-07-04T18:27:17.88
IV.MSSA.HHN. ML:2.4 0.0013 0.18 AML other m 2019-07-04T18:27:20.24
IV.MSSA.HHE. ML:2.3 0.0010235 1.22 AML other m 2019-07-04T18:27:20.35
IV.PLMA.HHE. ML:2.3 0.0006465 0.64 AML other m 2019-07-04T18:27:23.66
GU.GORR.HHE. ML:2.4 0.0008465 1.2 AML other m 2019-07-04T18:27:24.76
GU.GORR.HHN. ML:2.6 0.00107 1.44 AML other m 2019-07-04T18:27:24.20
IV.BOB.HHN. ML:2.4 0.0006765 0.82 AML other m 2019-07-04T18:27:26.61
IV.BOB.HHE. ML:2.5 0.000825 0.36 AML other m 2019-07-04T18:27:26.57
IV.BOB.HNN. ML:2.3 0.0006093728 0.3968 AML other m 2019-07-04T18:27:26.57
MN.VLC.HHE. ML:1.8 0.0001585 1.2 AML other m 2019-07-04T18:27:27.83
MN.VLC.HHN. ML:1.9 0.000189 1.64 AML other m 2019-07-04T18:27:27.15
IV.PLMA.HHN. ML:0 0.0004975 0.88 AML other m 2019-07-04T18:27:30.05
GU.RNCA.HHN. ML:2.2 0.0002915 0.64 AML other m 2019-07-04T18:27:31.41
GU.RNCA.HHE. ML:2.3 0.0003205 0.5 AML other m 2019-07-04T18:27:31.33
GU.CARD.HHE. ML:2.7 0.0008645 0.16 AML other m 2019-07-04T18:27:35.60
GU.CARD.HHN. ML:2.6 0.0007365 0.24 AML other m 2019-07-04T18:27:35.71
GU.PCP.HHN. ML:2.3 0.0002105 1.42 AML other m 2019-07-04T18:27:41.04
IV.PII.HHE. ML:2.6 0.000445 0.28 AML other m 2019-07-04T18:27:42.67
IV.PII.HHN. ML:2.5 0.0003555 0.82 AML other m 2019-07-04T18:27:43.05
GU.PCP.HHE. ML:2 0.0001058 0.8 AML other m 2019-07-04T18:27:43.58
IV.QLNO.HHE. ML:2.1 8.905E-5 0.58 AML other m 2019-07-04T18:27:45.13
IV.QLNO.HHN. ML:2.2 0.000134 0.5 AML other m 2019-07-04T18:27:45.12
IV.MOCL.EHN. ML:2.1 9.76E-5 0.44 AML other m 2019-07-04T18:27:48.13
GU.CANO.HHN. ML:2.7 0.0003345 0.38 AML other m 2019-07-04T18:27:50.38
GU.CANO.HHE. ML:2.7 0.000356 1.16 AML other m 2019-07-04T18:27:53.68
IV.MOCL.EHE. ML:2.1 9.38E-5 1.24 AML other m 2019-07-04T18:27:56.84
IV.MDI.HHE. ML:2.9 0.000417 1.54 AML other m 2019-07-04T18:27:56.13
IV.MDI.HNE. ML:2.9 0.0004305 1.54 AML other m 2019-07-04T18:27:56.13
IV.MDI.HHN. ML:2.8 0.000332 1.5 AML other m 2019-07-04T18:27:56.24
IV.MDI.HNN. ML:2.8 0.0003455 0.48 AML other m 2019-07-04T18:27:58.06
IV.MBAL.EHN. ML:2.4 0.0001147 0.56 AML other m 2019-07-04T18:27:58.39
IV.MBAL.EHE. ML:2.8 0.000254 0.54 AML other m 2019-07-04T18:27:59.48
IV.MAGA.HHN. ML:2.8 0.0002535 0.3 AML other m 2019-07-04T18:28:01.16
ST.VARA.EHN. ML:3 0.0003855 0.44 AML other m 2019-07-04T18:28:02.32
IV.MAGA.HHE. ML:3 0.000494 1.52 AML other m 2019-07-04T18:28:02.13
ST.RONC.EHN. ML:3 0.000352 0.96 AML other m 2019-07-04T18:28:03.07
ST.RONC.EHE. ML:3 0.0003295 0.42 AML other m 2019-07-04T18:28:03.80
ST.VARA.EHE. ML:3.1 0.000458 0.32 AML other m 2019-07-04T18:28:04.17
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download