Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.8 on date 27-05-2012 and time 07:55:56 (Italy) in region 2 km NE Medolla (MO)

A magnitude ML 2.8 earthquake occured in region: 2 km NE Medolla (MO), on

  • 27-05-2012 05:55:56 (UTC)
  • 27-05-2012 07:55:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8700, 11.0820 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Medolla MO 2 6308 6308
Mirandola MO 2 23875 30183
Cavezzo MO 5 7026 37209
San Felice sul Panaro MO 6 10900 48109
San Possidonio MO 7 3619 51728
Concordia sulla Secchia MO 9 8641 60369
Camposanto MO 10 3201 63570
San Prospero MO 10 5860 69430
San Giovanni del Dosso MN 11 1248 70678
San Giacomo delle Segnate MN 12 1639 72317
Poggio Rusco MN 13 6625 78942
Schivenoglia MN 14 1203 80145
Novi di Modena MO 14 10247 90392
Villa Poma MN 15 2023 92415
Moglia MN 15 5600 98015
Bomporto MO 16 10157 108172
Ravarino MO 16 6233 114405
Crevalcore BO 17 13465 127870
Bastiglia MO 17 4193 132063
Magnacavallo MN 17 1561 133624
Finale Emilia MO 17 15699 149323
Quistello MN 18 5595 154918
Rolo RE 18 4105 159023
Carpi MO 18 70699 229722
Pieve di Coriano MN 18 1035 230757
Soliera MO 19 15461 246218
Quingentole MN 19 1203 247421

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Carpi (70699 inhabitants)
28 Km NE of Modena (184973 inhabitants)
40 Km E of Reggio nell'Emilia (171345 inhabitants)
43 Km W of Ferrara (133155 inhabitants)
46 Km NW of Bologna (386663 inhabitants)
60 Km E of Parma (192836 inhabitants)
60 Km W of Rovigo (51867 inhabitants)
64 Km S of Verona (258765 inhabitants)
76 Km NW of Imola (69797 inhabitants)
84 Km SW of Vicenza (112953 inhabitants)
86 Km SW of Padova (210401 inhabitants)
88 Km E of Cremona (71901 inhabitants)
91 Km NW of Faenza (58541 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 		Md 2.6
ML 2.8 		2012-05-27
05:55:55		 44.7617 11.2608 19 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1411881
Bulletin
Rev1000 		ML 2.8 2012-05-27
05:55:56		 44.8695 11.082 5 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza 5895721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-27 05:55:56 ± 0.03
Latitude 44.8695 ± 0.0009
Longitude 11.0820 ± 0.0013
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> REMO-INGV
Event type earthquake
Origin ID 5895721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 309
Semi-minor axis of confidence ellipse (meter) 60
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2387
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 1.13135
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 5895721
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:47:28

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations 0
Type of magnitude ML
Reference to an origin 1411881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-27 06:26:58

Md:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 0
Type of magnitude Md
Reference to an origin 1411881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-27 06:26:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.CGRP.HHZ. 2012-05-27T05:56:33.81 0.6 undecidable manual S 26 125.5743 0.08 0
GU.POPM.HHZ. 2012-05-27T05:56:30.70 1.0 undecidable manual S 195 99.3228 0.15 2.18
IV.SEI.SHZ. 2012-05-27T05:56:30.08 0.6 undecidable manual S 166 93.0402 6 10.51
IV.MAGA.HHZ. 2012-05-27T05:56:29.98 0.6 undecidable manual S 341 106.6155 0.41 1.85
MN.VLC.HHZ. 2012-05-27T05:56:28.57 0.6 undecidable manual S 215 96.2259 0.89 0.8
IV.SALO.HHZ. 2012-05-27T05:56:27.85 0.6 undecidable manual S 332 93.8394 0.54 1.4
IV.ROVR.HHZ. 2012-05-27T05:56:24.82 0.6 undecidable manual S 359 86.247 0.39 0.9
IV.TEOL.HHZ. 2012-05-27T05:56:19.16 0.6 undecidable manual S 40 71.6727 -0.94 0.36
NI.CGRP.HHZ. 2012-05-27T05:56:17.88 0.6 undecidable manual P 26 125.5743 0.47 0
IV.MAGA.HHZ. 2012-05-27T05:56:15.51 0.6 undecidable manual P 341 106.6155 0.95 1.29
IV.BDI.HHZ. 2012-05-27T05:56:14.95 0.6 undecidable manual P 203 97.4247 1.26 0.78
IV.T0815.EHZ. 2012-05-27T05:56:14.95 0.3 undecidable manual S 89 50.3163 -0.06 0.17
IV.SEI.SHZ. 2012-05-27T05:56:14.65 0.6 undecidable manual P 166 93.0402 1.64 0.71
GU.POPM.HHZ. 2012-05-27T05:56:14.70 0.6 undecidable manual P 195 99.3228 0.73 0.86
MN.VLC.HHZ. 2012-05-27T05:56:14.56 0.6 undecidable manual P 215 96.2259 0.82 0.66
IV.SALO.HHZ. 2012-05-27T05:56:13.85 0.6 undecidable manual P 332 93.8394 0.69 0.72
IV.ROVR.HHZ. 2012-05-27T05:56:12.26 0.6 undecidable manual P 359 86.247 0.78 0.64
IV.MTRZ.HHZ. 2012-05-27T05:56:11.09 0.6 undecidable manual P 156 67.4769 1.6 0.34
IV.PRMA.HHZ. 2012-05-27T05:56:10.40 0.6 undecidable manual P 259 61.7937 2.02 0.7
IV.T0817.EHZ. 2012-05-27T05:56:09.77 0.1 undecidable manual S 65 32.4453 0.16 0.07
IV.TEOL.HHZ. 2012-05-27T05:56:09.18 0.3 undecidable manual P 40 71.6727 -0.16 0.16
IV.ZCCA.HHZ. 2012-05-27T05:56:09.09 0.6 undecidable manual P 188 58.0974 1.12 0.28
IV.NOVE.EHZ. 2012-05-27T05:56:08.02 0.6 undecidable manual S 255 29.9478 -0.96 0.32
IV.T0823.EHZ. 2012-05-27T05:56:07.68 0.3 undecidable manual S 143 25.5522 0.01 0.23
IV.T0815.EHZ. 2012-05-27T05:56:06.78 0.6 undecidable manual P 89 50.3163 0.51 0.26
IV.T0822.EHZ. 2012-05-27T05:56:05.27 0.3 undecidable manual S 101 21.1677 -0.21 0.2
IV.T0803.HNZ. 2012-05-27T05:56:04.47 0.6 undecidable manual S 118 24.0537 -1.94 1.11
IV.T0805.HNZ. 2012-05-27T05:56:04.94 0.6 undecidable manual S 74 19.7691 -0.12 0.32
IV.T0812.EHZ. 2012-05-27T05:56:03.39 0.3 undecidable manual S 40 12.2766 0.43 0.21
IV.T0814.EHZ. 2012-05-27T05:56:03.17 0.1 undecidable manual S 227 12.2766 0.19 0.07
IV.RAVA.EHZ. 2012-05-27T05:56:03.33 0.1 undecidable manual S 167 12.9759 0.06 0.08
IV.T0811.EHZ. 2012-05-27T05:56:03.39 0.1 undecidable manual S 130 14.874 0.03 0.08
IV.NOVE.EHZ. 2012-05-27T05:56:02.18 0.3 undecidable manual P 255 29.9478 -0.38 0.14
IV.T0817.EHZ. 2012-05-27T05:56:02.75 0.3 undecidable manual P 65 32.4453 -0.27 0.14
IV.T0818.EHZ. 2012-05-27T05:56:02.05 0.1 undecidable manual S 331 8.2806 0.26 0.18
IV.MODE.HNZ. 2012-05-27T05:56:02.64 0.3 undecidable manual P 202 28.5492 -0.1 0.13
IV.T0800.HHZ. 2012-05-27T05:56:02.82 0.3 undecidable manual S 100 13.2756 -0.07 0.19
IV.T0803.HNZ. 2012-05-27T05:56:01.35 0.3 undecidable manual P 118 24.0537 0 0.14
IV.T0802.HNZ. 2012-05-27T05:56:01.11 0.6 undecidable manual S 85 7.881 -0.08 0.35
IV.T0823.EHZ. 2012-05-27T05:56:01.97 0.3 undecidable manual P 143 25.5522 -0.03 0.14
IV.T0813.EHZ. 2012-05-27T05:56:01.57 0.6 undecidable manual S 84 9.2796 -0.03 0.34
IV.SERM.HNZ. 2012-05-27T05:56:01.35 0.3 undecidable manual P 47 22.9548 -0.04 0.14
IV.T0805.HNZ. 2012-05-27T05:56:00.56 0.6 undecidable manual P 74 19.7691 0.02 0.25
IV.T0822.EHZ. 2012-05-27T05:56:00.74 0.3 undecidable manual P 101 21.1677 -0.16 0.13
IV.T0811.EHZ. 2012-05-27T05:55:59.53 0.3 undecidable manual P 130 14.874 -0.18 0.14
IV.T0800.HHZ. 2012-05-27T05:55:59.42 0.3 undecidable manual P 100 13.2756 -0.09 0.13
IV.T0812.EHZ. 2012-05-27T05:55:59.54 0.3 undecidable manual P 40 12.2766 0.12 0.15
IV.T0819.EHZ. 2012-05-27T05:55:59.32 0.3 undecidable manual P 278 14.5743 -0.25 0.15
IV.T0814.EHZ. 2012-05-27T05:55:59.51 0.1 undecidable manual P 227 12.2766 -0.03 0.05
IV.RAVA.EHZ. 2012-05-27T05:55:59.59 0.1 undecidable manual P 167 12.9759 -0.1 0.05
IV.T0813.EHZ. 2012-05-27T05:55:58.76 0.3 undecidable manual P 84 9.2796 -0.08 0.13
IV.T0802.HNZ. 2012-05-27T05:55:58.49 0.3 undecidable manual P 85 7.881 -0.09 0.13
IV.T0818.EHZ. 2012-05-27T05:55:58.93 0.3 undecidable manual P 331 8.2806 0.06 0.19
IV.SBPO.HHZ. 2012-05-27T05:55:54.77 0.6 undecidable manual P 328 23.8539 -7.14 1.96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NOVE.EHE. ML:2.9 0.004115000000000001 0.26 AML other m 2012-05-27T05:56:09.50
IV.NOVE.EHN. ML:2.9 0.003725 0.88 AML other m 2012-05-27T05:56:09.58
IV.SERM.HNE. ML:2.5 0.002075 0.82 AML other m 2012-05-27T05:56:13.26
IV.SERM.HNN. ML:2.6 0.002885 0.9 AML other m 2012-05-27T05:56:17.44
IV.SERM.EHN. ML:2.8 0.003915 0.78 AML other m 2012-05-27T05:56:17.46
IV.SERM.EHE. ML:2.7 0.00333 1.34 AML other m 2012-05-27T05:56:21.02
IV.ZCCA.HHE. ML:2.4 0.0005555000000000001 0.74 AML other m 2012-05-27T05:56:30.61
IV.ZCCA.HHN. ML:2.5 0.000711 0.88 AML other m 2012-05-27T05:56:30.71
IV.MAGA.HHE. ML:3.7 0.0041600000000000005 0.3 AML other m 2012-05-27T05:56:32.14
IV.MAGA.HHN. ML:3.7 0.00483 0.54 AML other m 2012-05-27T05:56:31.74
GU.POPM.HHN. ML:2.6 0.0004735 0.86 AML other m 2012-05-27T05:56:32.36
IV.CRMI.HHN. ML:2.0 0.00007525 0.86 AML other m 2012-05-27T05:56:35.83
GU.MAIM.HHN. ML:2.7 0.000378 0.46 AML other m 2012-05-27T05:56:36.17
GU.POPM.HHE. ML:2.5 0.00036449999999999997 0.3 AML other m 2012-05-27T05:56:36.59
GU.MAIM.HHE. ML:2.6 0.00033400000000000004 1.16 AML other m 2012-05-27T05:56:37.23
IV.MABI.HHN. ML:2.4 0.00014000000000000001 1.26 AML other m 2012-05-27T05:56:38.25
IV.MABI.HHE. ML:2.5 0.00017649999999999998 0.42 AML other m 2012-05-27T05:56:38.07
IV.CRMI.HHE. ML:2.1 0.00010200000000000001 1.26 AML other m 2012-05-27T05:56:39.34
MN.VLC.HHN. ML:2.6 0.000435 0.72 AML other m 2012-05-27T05:56:38.73
IV.ASQU.HHE. ML:2.4 0.000148 1.14 AML other m 2012-05-27T05:56:41.02
IV.ASQU.HHN. ML:2.3 0.0001295 0.62 AML other m 2012-05-27T05:56:41.28
IV.PLMA.HHE. ML:3.0 0.000619 0.58 AML other m 2012-05-27T05:56:41.28
IV.PLMA.HHN. ML:3.0 0.0006374999999999999 0.5 AML other m 2012-05-27T05:56:41.50
NI.CGRP.HHN. ML:3.0 0.0006225 0.86 AML other m 2012-05-27T05:56:41.13
MN.VLC.HHE. ML:2.4 0.0002925 0.88 AML other m 2012-05-27T05:56:42.58
IV.MSSA.HHN. ML:3.0 0.000537 0.38 AML other m 2012-05-27T05:56:44.33
IV.MSSA.HHE. ML:2.9 0.000468 0.58 AML other m 2012-05-27T05:56:45.69
NI.CGRP.HHE. ML:2.8 0.00046399999999999995 0.64 AML other m 2012-05-27T05:56:45.59
IV.APPI.EHE. ML:3.3 0.0008125 0.36 AML other m 2012-05-27T05:56:48.66
IV.BRMO.HHN. ML:2.8 0.00022250000000000001 0.86 AML other m 2012-05-27T05:56:51.34
IV.BRMO.HHE. ML:2.6 0.000129 0.82 AML other m 2012-05-27T05:56:51.36
SI.KOSI.HHN. ML:2.9 0.0002695 0.94 AML other m 2012-05-27T05:56:51.47
IV.APPI.EHN. ML:3.0 0.0004035 0.34 AML other m 2012-05-27T05:56:55.21
SI.MOSI.HHE. ML:3.1 0.0004 1.26 AML other m 2012-05-27T05:56:57.58
IV.STAL.HHE. ML:3.2 0.000441 0.68 AML other m 2012-05-27T05:56:57.39
SI.KOSI.HHE. ML:2.8 0.00023299999999999997 1.38 AML other m 2012-05-27T05:56:58.96
IV.STAL.HHN. ML:3.1 0.0003655 1.4 AML other m 2012-05-27T05:57:00.68
IV.VARE.HHE. ML:2.6 0.00010499999999999999 0.26 AML other m 2012-05-27T05:57:03.28
GU.FINB.HHE. ML:2.9 0.0001885 0.3 AML other m 2012-05-27T05:57:05.03
SI.MOSI.HHN. ML:3.3 0.0005809999999999999 0.94 AML other m 2012-05-27T05:57:05.21
GU.FINB.HHN. ML:1.6 0.000009025 0.36 AML other m 2012-05-27T05:57:05.36
SI.ROSI.HHN. ML:3.1 0.000278 0.76 AML other m 2012-05-27T05:57:05.66
NI.SABO.HHE. ML:3.0 0.00022300000000000003 0.8 AML other m 2012-05-27T05:57:08.20
NI.SABO.HHN. ML:3.1 0.000264 1.02 AML other m 2012-05-27T05:57:09.80
SI.RISI.HHE. ML:3.3 0.00036350000000000005 0.48 AML other m 2012-05-27T05:57:15.68
SI.ROSI.HHE. ML:3.1 0.000263 0.58 AML other m 2012-05-27T05:57:16.77
GU.NEGI.HHN. ML:2.7 0.00006865 0.52 AML other m 2012-05-27T05:57:17.10
IV.VARE.HHN. ML:2.5 0.00008625 0.68 AML other m 2012-05-27T05:57:16.96
SI.RISI.HHN. ML:3.2 0.00033099999999999997 0.34 AML other m 2012-05-27T05:57:18.29
FR.SAOF.HHN. ML:2.8 0.00008975 0.88 AML other m 2012-05-27T05:57:19.42
GU.NEGI.HHE. ML:2.6 0.00005205 0.66 AML other m 2012-05-27T05:57:19.81
IV.ARCI.HHN. ML:2.0 0.000025300000000000002 1.26 AML other m 2012-05-27T05:57:20.16
FR.SAOF.HHE. ML:2.6 0.0000524 0.34 AML other m 2012-05-27T05:57:20.91
IV.ARCI.HHE. ML:1.9 0.00002005 1.04 AML other m 2012-05-27T05:57:33.13
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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