Earthquake with magnitude of ML 1.1 on date 23-10-2019 and time 01:35:25 (Italy) in region 5 km E Aulla (MS)

A magnitude ML 1.1 earthquake occured in region: 5 km E Aulla (MS), on

  • 22-10-2019 23:35:25 (UTC)
  • 23-10-2019 01:35:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.22, 10.03 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Aulla MS 5 11263 11263
Licciana Nardi MS 5 4949 16212
Tresana MS 6 2044 18256
Podenzana MS 7 2180 20436
Fivizzano MS 8 7925 28361
Fosdinovo MS 9 4883 33244
Villafranca in Lunigiana MS 10 4770 38014
Santo Stefano di Magra SP 11 9360 47374
Bagnone MS 11 1887 49261
Bolano SP 11 7813 57074
Casola in Lunigiana MS 12 988 58062
Comano MS 12 714 58776
Sarzana SP 13 21976 80752
Castelnuovo Magra SP 13 8415 89167
Vezzano Ligure SP 14 7356 96523
Filattiera MS 14 2309 98832
Follo SP 15 6337 105169
Mulazzo MS 15 2424 107593
Ortonovo SP 15 8277 115870
Arcola SP 15 10607 126477
Calice al Cornoviglio SP 15 1138 127615
Minucciano LU 15 2102 129717
Carrara MS 17 63133 192850
Ameglia SP 18 4365 197215
Lerici SP 18 10228 207443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Carrara (63133 inhabitants)
20 Km NE of La Spezia (93959 inhabitants)
22 Km NW of Massa (69479 inhabitants)
43 Km NW of Viareggio (62467 inhabitants)
56 Km NW of Lucca (89046 inhabitants)
64 Km NW of Pisa (89158 inhabitants)
69 Km SW of Parma (192836 inhabitants)
72 Km SW of Reggio nell'Emilia (171345 inhabitants)
78 Km NW of Livorno (159219 inhabitants)
78 Km W of Pistoia (90315 inhabitants)
86 Km SW of Modena (184973 inhabitants)
90 Km E of Genova (586655 inhabitants)
93 Km SW of Carpi (70699 inhabitants)
94 Km W of Prato (191150 inhabitants)
96 Km S of Piacenza (102191 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.1 2019-10-22
23:35:25
44.22 10.03 9 2019-10-22
23:46:02
Sala Sismica INGV-Roma 73400501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-22 23:35:25 ± 0.09
Latitude 44.22 ± 0.01
Longitude 10.03 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73400501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 579
Semi-minor axis of confidence ellipse (meter) 496
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
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 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.61244
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 73400501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-22 23:46:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PII.HHZ. 2019-10-22T23:35:46.50 0.6 undecidable manual S 144 0.6124 50 -0.02 48
GU.GSCL.HHE. 2019-10-22T23:35:41.06 0.3 undecidable manual S 72 0.4218 50 0.2 72
IV.MSSA.HHE. 2019-10-22T23:35:39.29 0.3 undecidable manual S 285 0.3777 50 -0.25 72
GU.CARD.HHZ. 2019-10-22T23:35:39.09 0.3 undecidable manual S 121 0.3795 50 -0.5 68
IV.PII.HHZ. 2019-10-22T23:35:38.08 0.6 negative manual P 144 0.6124 50 0.43 44
GU.GRAM.HHZ. 2019-10-22T23:35:36.09 0.3 undecidable manual S 6 0.2725 50 -0.35 72
GU.CARD.HHZ. 2019-10-22T23:35:35.12 3.0 undecidable manual P 121 0.3795 50 1.46 0
MN.VLC.HNZ. 2019-10-22T23:35:35.90 0.6 undecidable manual S 103 0.2644 50 -0.29 48
IV.PLMA.HHZ. 2019-10-22T23:35:34.01 0.3 undecidable manual S 216 0.2104 112 -0.27 74
GU.GSCL.HHE. 2019-10-22T23:35:34.73 0.6 undecidable manual P 72 0.4218 50 0.34 46
IV.MSSA.HHE. 2019-10-22T23:35:33.90 0.6 undecidable manual P 285 0.3777 50 0.28 47
MN.VLC.HNZ. 2019-10-22T23:35:32.23 0.6 undecidable manual P 103 0.2644 50 0.54 46
GU.GRAM.HHZ. 2019-10-22T23:35:31.96 0.1 positive manual P 6 0.2725 50 0.13 100
GU.EQUI.HHZ. 2019-10-22T23:35:30.65 0.3 undecidable manual S 121 0.1052 129 -0.08 78
IV.PLMA.HHZ. 2019-10-22T23:35:30.82 0.3 undecidable manual P 216 0.2104 112 0.24 74
GU.FIVI.HNZ. 2019-10-22T23:35:29.54 0.3 undecidable manual S 75 0.0746 139 -0.33 75
GU.EQUI.HHZ. 2019-10-22T23:35:28.71 0.3 undecidable manual P 121 0.1052 129 0.18 77
GU.FIVI.HNZ. 2019-10-22T23:35:28.14 0.3 undecidable manual P 75 0.0746 139 0.1 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLMA.HHE. ML:1 5.795987E-5 0.192 AML other m 2019-10-22T23:35:34.14
IV.PLMA.HHN. ML:1.2 0.00010150449 0.1664 AML other m 2019-10-22T23:35:34.34
GU.GRAM.HHE. ML:1.5 0.000139083365 0.2048 AML other m 2019-10-22T23:35:37.63
GU.GRAM.HHN. ML:1.5 0.00013916775 0.2048 AML other m 2019-10-22T23:35:36.98
GU.CARD.HHE. ML:0.8 2.1295835E-5 0.1664 AML other m 2019-10-22T23:35:44.67
GU.CARD.HHN. ML:1 3.202603E-5 0.1408 AML other m 2019-10-22T23:35:44.39
IV.PII.HHN. ML:0.8 1.0125745E-5 0.2432 AML other m 2019-10-22T23:35:49.65
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