Earthquake with magnitude of ML 1.0 on date 01-09-2021 and time 02:27:58 (Italy) in region 3 km W Toano (RE)

A magnitude ML 1.0 earthquake occured in region: 3 km W Toano (RE), on

  • 01-09-2021 00:27:58 (UTC)
  • 01-09-2021 02:27:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.373, 10.524 at 10 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
Toano RE 3 4463 4463
Villa Minozzo RE 5 3750 8213
Montefiorino MO 8 2203 10416
Carpineti RE 9 4064 14480
Frassinoro MO 9 1926 16406
Palagano MO 11 2194 18600
Castelnovo ne' Monti RE 12 10465 29065
Prignano sulla Secchia MO 15 3747 32812
Baiso RE 15 3315 36127
Casina RE 16 4504 40631
Ventasso RE 16 4295 44926
Polinago MO 16 1672 46598
Lama Mocogno MO 18 2734 49332
Riolunato MO 19 712 50044
Vetto RE 19 1860 51904
Pievepelago MO 20 2222 54126

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km S of Reggio nell'Emilia (171345 inhabitants)
44 Km SW of Modena (184973 inhabitants)
47 Km NE of Carrara (63133 inhabitants)
48 Km NE of Massa (69479 inhabitants)
50 Km SE of Parma (192836 inhabitants)
54 Km SW of Carpi (70699 inhabitants)
58 Km NW of Pistoia (90315 inhabitants)
59 Km N of Lucca (89046 inhabitants)
60 Km NE of Viareggio (62467 inhabitants)
63 Km E of La Spezia (93959 inhabitants)
66 Km W of Bologna (386663 inhabitants)
71 Km NW of Prato (191150 inhabitants)
74 Km N of Pisa (89158 inhabitants)
86 Km NW of Scandicci (50609 inhabitants)
89 Km NW of Firenze (382808 inhabitants)
93 Km N of Livorno (159219 inhabitants)
93 Km SE of Cremona (71901 inhabitants)
95 Km W of Imola (69797 inhabitants)
Recent and historical seismicity
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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2021-09-01
00:27:58
44.3728 10.5238 10 2021-09-01
00:37:23
Sala Sismica INGV-Roma 94891611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-01 00:27:58 ± 0.39
Latitude 44.3728 ± 0.0198
Longitude 10.5238 ± 0.0264
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94891611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2525
Semi-minor axis of confidence ellipse (meter) 1696
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 2530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.59
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.36782
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 94891611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-01 00:37:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZCCA.HHZ. 2021-09-01T00:28:13.08 0.1 undecidable manual S 94 0.3238 50 1.91 43
GU.POPM.HHZ. 2021-09-01T00:28:12.25 0.3 undecidable manual S 153 0.3678 50 -0.21 73
IV.BDI.HHZ. 2021-09-01T00:28:10.72 0.3 undecidable manual S 171 0.3139 50 -0.15 74
GU.SARM.EHE. 2021-09-01T00:28:08.08 0.3 undecidable manual S 205 0.2077 113 0.52 70
GU.POPM.HHZ. 2021-09-01T00:28:06.09 0.1 undecidable manual P 153 0.3678 50 -0.61 87
GU.GRAM.HHZ. 2021-09-01T00:28:06.31 0.6 undecidable manual P 290 0.348 50 -0.06 50
IV.ZCCA.HHZ. 2021-09-01T00:28:05.81 0.1 undecidable manual P 94 0.3238 50 -0.15 99
IV.BDI.HHZ. 2021-09-01T00:28:05.53 0.1 positive manual P 171 0.3139 50 -0.26 97
GU.SARM.EHE. 2021-09-01T00:28:04.39 0.1 undecidable manual P 205 0.2077 113 0.52 93
GU.GSCL.HHZ. 2021-09-01T00:28:02.67 0.3 undecidable manual S 116 0.0513 150 -0.12 79
GU.GSCL.HHZ. 2021-09-01T00:28:00.77 0.1 positive manual P 116 0.0513 150 -0.35 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHN. ML:0.8 0.0001117 0.74 AML other m 2021-09-01T00:28:01.61
GU.GSCL.HHE. ML:0.8 0.00010805 0.26 AML other m 2021-09-01T00:28:02.76
IV.BDI.HHE. ML:0.9 3.525E-5 0.46 AML other m 2021-09-01T00:28:11.13
IV.BDI.HHN. ML:1 4.53E-5 0.98 AML other m 2021-09-01T00:28:11.93
GU.POPM.HHE. ML:1 2.93E-5 1.46 AML other m 2021-09-01T00:28:13.16
GU.POPM.HHN. ML:1.2 4.89E-5 0.14 AML other m 2021-09-01T00:28:13.98
GU.GRAM.HHE. ML:0.9 3.15E-5 0.36 AML other m 2021-09-01T00:28:15.40
GU.GRAM.HHN. ML:0.9 3.17E-5 1.06 AML other m 2021-09-01T00:28:16.70
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