RSNI - Manually revised location

MANUAL Location - Area: Mar Ligure , magnitude (M_L): 1.8
2021-02-26 05:32:53 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-02-26 08:00:50

Earthquake info - Manual location

Event - ID :	210226053136
Magnitude (M_L) :	1.8 +/- 0.2
Origin Time :	2021-02-26 05:32:53.915 (UTC)
Location :	Latitude: 43.991 N, Longitude: 8.397 E
Area :	Mar Ligure
Depth (km) :	3.20
Distances (km) :	16.1 --- Albenga 17.6 --- Ceriale 18.1 --- Alassio 18.2 --- Borghetto Santo Spirito 18.9 --- Loano 19.2 --- Laigueglia 19.9 --- Pietra Ligure 20.3 --- Borgio Verezzi 20.4 --- Finale Ligure 20.7 --- Andora 21.2 --- Villanova d Albenga 21.2 --- Toirano 21.3 --- Boissano 22.7 --- Cisano sul Neva 23.1 --- Tovo San Giacomo 23.3 --- Balestrino 23.6 --- Cervo 23.7 --- Giustenice 24.0 --- Noli 24.5 --- Garlenda

Quality location estimate: Erh: 1.8 km, Erz: 2.3 km, Nf: 46, Gap: 182 °, Rms: 0.29

Manual location results

Station	Net	P arrival time	P pick err	P pick weight	P res	Nll weight	S arrival time	S pick err	S pick weight	S res	Nll weight	Dist.
CANO	GU	2021-02-26 05:32:59.540	0.012	0	0.00	1.52	2021-02-26 05:33:03.313	0.100	2	-0.12	1.35	27.5
RORO	GU	2021-02-26 05:32:59.720	0.014	0	-0.02	1.51	2021-02-26 05:33:04.257	0.040	0	0.47	0.89	29.8
QLNO	GU	2021-02-26 05:33:01.110	0.017	0	-0.51	0.68	2021-02-26 05:33:06.247	0.244	6	-0.91	0.27	37.4
IMI	GU	2021-02-26 05:33:01.320	0.021	1	-0.53	0.65	2021-02-26 05:33:07.510	0.123	3	-0.13	1.32	41.5
GBOS	GU	2021-02-26 05:33:03.660	0.025	1	0.17	1.39	2021-02-26 05:33:10.496	0.040	0	0.31	1.21	52.6
PCP	GU	2021-02-26 05:33:04.980	0.030	1	-0.23	1.14	2021-02-26 05:33:12.530	0.501	9	-0.84	0.48	62.4
SAOF	FR	2021-02-26 05:33:06.330	0.163	7	0.19	1.35	2021-02-26 05:33:15.120	0.241	6	0.11	1.25	67.6
RNCA	GU	2021-02-26 05:33:06.220	0.034	1	0.26	1.29	2021-02-26 05:33:15.973	0.040	0	1.27	0.07	69.4
BURY	GU	2021-02-26 05:33:06.275	0.036	1	-0.33	0.99	2021-02-26 05:33:15.405	0.213	6	-0.31	1.03	71.2
TURF	FR	2021-02-26 05:33:08.620	0.039	1	0.15	1.42	2021-02-26 05:33:18.950	0.236	6	0.06	1.23	80.4
ENR	GU	2021-02-26 05:33:08.400	0.040	1	-0.18	1.25	2021-02-26 05:33:19.064	0.100	2	0.19	1.28	82.6
MON	FR	2021-02-26 05:33:09.500	0.042	2	0.57	0.68	2021-02-26 05:33:19.853	0.472	9	0.06	0.99	83.1
ESCA	FR	2021-02-26 05:33:09.350	0.042	2	0.21	1.35	2021-02-26 05:33:20.160	0.250	7	0.02	1.21	84.2
STV	GU	2021-02-26 05:33:09.750	0.044	2	-0.07	1.40	2021-02-26 05:33:20.076	0.704	9	-0.85	0.51	90.1
MSSA	IV	2021-02-26 05:33:09.150	0.049	2	-1.35	0.08	2021-02-26 05:33:20.700	0.877	9	-1.80	0.17	96.5
GORR	GU	2021-02-26 05:33:11.189	0.040	1	0.38	1.08	2021-02-26 05:33:22.984	0.040	0	0.06	1.30	98.9
MVIF	FR	2021-02-26 05:33:12.080	0.275	9	0.10	1.24	2021-02-26 05:33:24.740	0.296	7	-0.28	0.98	100.2
ISO	FR	2021-02-26 05:33:13.420	0.054	2	0.22	1.32	2021-02-26 05:33:26.938	0.040	0	0.26	1.14	109.7
PZZ	GU	2021-02-26 05:33:14.040	0.057	2	-0.32	1.03	2021-02-26 05:33:28.980	0.040	0	0.16	1.19	117.1
BHB	GU	2021-02-26 05:33:16.113	0.068	3	0.58	0.70	2021-02-26 05:33:31.574	0.100	2	0.70	0.59	130.1
SURF	FR	2021-02-26 05:33:17.330	0.067	3	-0.38	0.93	2021-02-26 05:33:34.541	0.130	3	-0.20	1.04	137.4
MORSI	FR	2021-02-26 05:33:13.681	0.020	0	-3.30	0.00	2021-02-26 05:33:27.958	0.040	0	-5.47	0.00	139.3
RSP	GU	2021-02-26 05:33:20.087	0.080	3	0.43	0.97	2021-02-26 05:33:39.263	0.130	3	1.03	0.32	156.8
RRL	GU	2021-02-26 05:33:20.914	0.080	3	-0.22	1.15	2021-02-26 05:33:40.788	0.040	0	-0.05	1.06	164.2

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
CANO	GU	HH	1.60	5.89e-1	27.5	332
QLNO	GU	HH	1.50	2.57e-1	37.4	354
IMI	GU	HH	1.90	7.11e-1	41.5	258
GBOS	GU	HH	1.69	1.03e-1	52.6	302
PCP	GU	HH	1.58	1.20e-1	62.4	11
SAOF	FR	HH	1.67	1.13e-1	67.6	270
RNCA	GU	HH	1.43	6.20e-2	69.4	39
BURY	GU	HH	1.85	1.53e-1	71.2	251
ENR	GU	HH	2.16	3.14e-1	82.6	289
STV	GU	HH	2.14	1.20e-1	90.1	289
GORR	GU	HH	1.63	4.42e-2	98.9	46
ISO	FR	HH	1.70	3.99e-2	109.7	282
PZZ	GU	HH	2.11	1.49e-1	117.1	300
BHB	GU	HH	2.09	5.81e-2	130.1	317
MORSI	FR	HH	1.44	1.19e-2	139.3	146
RSP	GU	HH	1.86	2.44e-2	156.8	326
RRL	GU	HH	1.91	1.50e-2	164.2	310

Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation

Station

Net

Channel

PGA
(g)

PGV
(m/s)

IH 0*
(m)

IH 1*
(m)

IH 2*
(m)

Sa(T=0.10)
(g)

Sa(T=0.30)
(g)

Sa(T=1.00)
(g)

Sa(T=3.00)
(g)

Dist.
(km)

Azim.
(°)

CANO

HHZ

1.0651e-4

9.9633e-6

2.8381e-6

1.0461e-6

4.8189e-7

1.0720e-4

1.1721e-5

7.2379e-7

1.4784e-7

27.5

332

CANO

HHN

1.0447e-4

1.2266e-5

5.2749e-6

1.5477e-6

7.2706e-7

1.7783e-4

2.9787e-5

1.3913e-6

2.9508e-7

27.5

332

CANO

HHE

1.2745e-4

1.2295e-5

5.6755e-6

1.8228e-6

8.4088e-7

1.7833e-4

3.6538e-5

1.1539e-6

2.3198e-7

27.5

332

RORO

HHZ

3.7067e-5

4.2331e-6

1.9493e-6

6.3750e-7

2.6964e-7

9.8238e-5

6.2917e-6

4.4316e-7

9.3026e-8

29.8

297

RORO

HHN

1.3014e-1

2.8391e-2

1.3401e-2

1.5741e-2

1.2263e-2

1.9276e-1

8.1096e-2

1.3874e-2

1.2930e-3

29.8

297

RORO

HHE

6.0167e-5

7.1491e-6

2.7576e-6

7.6428e-7

3.8949e-7

1.7843e-4

9.0485e-6

6.7831e-7

1.4725e-7

29.8

297

QLNO

HHZ

3.3433e-5

3.3718e-6

1.6986e-6

5.1339e-7

2.6811e-7

3.5489e-5

9.1592e-6

4.6798e-7

8.5388e-8

37.4

354

QLNO

HHN

4.6798e-5

5.7057e-6

2.2343e-6

5.5804e-7

3.3876e-7

6.4952e-5

8.0220e-6

5.8081e-7

1.0039e-7

37.4

354

QLNO

HHE

3.5874e-5

4.5780e-6

1.8513e-6

7.0584e-7

2.9639e-7

7.3003e-5

6.0453e-6

4.9556e-7

1.0584e-7

37.4

354

IMI

HHZ

2.7862e-5

3.3782e-6

2.5616e-6

8.4258e-7

3.5631e-7

6.0752e-5

1.5694e-5

5.6208e-7

8.5928e-8

41.5

258

IMI

HHN

7.1319e-5

1.0276e-5

5.6316e-6

1.5556e-6

7.2089e-7

1.5547e-4

3.9916e-5

1.1648e-6

2.3795e-7

41.5

258

IMI

HHE

4.6202e-5

5.4270e-6

2.7362e-6

7.2612e-7

3.4519e-7

1.3292e-4

1.0322e-5

5.1268e-7

1.2717e-7

41.5

258

GBOS

HHZ

1.3536e-5

1.8633e-6

9.6177e-7

2.4311e-7

1.4170e-7

4.9039e-5

4.5873e-6

2.3216e-7

4.4473e-8

52.6

302

GBOS

HHN

1.9534e-5

2.1137e-6

9.4971e-7

2.5936e-7

1.1488e-7

3.3820e-5

4.2779e-6

1.8868e-7

4.2050e-8

52.6

302

GBOS

HHE

1.2664e-5

1.4969e-6

7.9346e-7

2.2938e-7

9.7947e-8

2.6610e-5

3.7605e-6

1.5797e-7

3.1936e-8

52.6

302

PCP

HHZ

9.7584e-6

1.4262e-6

6.7922e-7

2.4424e-7

1.0457e-7

2.4962e-5

3.4789e-6

1.4686e-7

2.9529e-8

62.4

PCP

HHN

1.6304e-5

2.4076e-6

7.6804e-7

2.5538e-7

9.7747e-8

3.9064e-5

3.0650e-6

1.7166e-7

4.8706e-8

62.4

PCP

HHE

1.7253e-5

2.5059e-6

1.1385e-6

3.3296e-7

1.6662e-7

4.8047e-5

5.0493e-6

2.4965e-7

4.9643e-8

62.4

SAOF

HHZ

6.3895e-6

9.2316e-7

9.9883e-7

5.3286e-7

2.0886e-7

1.7858e-5

6.0539e-6

2.4951e-7

3.1125e-8

67.6

270

SAOF

HHN

9.3092e-6

1.1875e-6

1.0478e-6

4.7852e-7

1.7460e-7

2.1910e-5

6.5351e-6

2.4748e-7

2.8513e-8

67.6

270

SAOF

HHE

1.1230e-5

1.4858e-6

1.1781e-6

5.5114e-7

1.8987e-7

2.3320e-5

7.1946e-6

2.6610e-7

4.1587e-8

67.6

270

RNCA

HHZ

6.2523e-6

6.8833e-7

3.6752e-7

1.4607e-7

6.9783e-8

1.2325e-5

1.8552e-6

8.9931e-8

1.5103e-8

69.4

RNCA

HHN

5.7649e-6

8.2224e-7

5.8314e-7

2.4990e-7

1.0955e-7

1.0739e-5

2.4817e-6

1.4178e-7

1.7545e-8

69.4

RNCA

HHE

1.0511e-5

9.1971e-7

4.6792e-7

2.0247e-7

8.2541e-8

1.4272e-5

1.8015e-6

1.1459e-7

1.7335e-8

69.4

BURY

HHZ

1.8295e-5

2.4396e-6

1.0452e-6

2.3663e-7

1.2550e-7

5.7050e-5

4.8390e-6

2.2973e-7

5.7174e-8

71.2

251

BURY

HHN

3.2543e-5

3.6572e-6

1.6496e-6

5.3493e-7

2.4491e-7

6.9255e-5

8.5840e-6

3.8236e-7

8.3718e-8

71.2

251

BURY

HHE

1.9756e-5

2.6083e-6

1.2407e-6

3.4707e-7

2.0691e-7

5.9404e-5

4.5515e-6

3.2375e-7

6.3717e-8

71.2

251

ENR

HHZ

2.1097e-5

2.4940e-6

1.1331e-6

2.8697e-7

1.3458e-7

4.2250e-5

7.3856e-6

2.1975e-7

5.0140e-8

82.6

289

ENR

HHN

7.7411e-5

9.0587e-6

2.3101e-6

5.6092e-7

3.1528e-7

1.6898e-4

9.6741e-6

7.0780e-7

1.8849e-7

82.6

289

ENR

HHE

6.7365e-5

5.8637e-6

1.2131e-6

3.7893e-7

1.6944e-7

5.5149e-5

5.0574e-6

3.7126e-7

1.0676e-7

82.6

289

STV

HHZ

8.0744e-6

1.4456e-6

9.4907e-7

2.2471e-7

1.0926e-7

2.7174e-5

5.4161e-6

1.7758e-7

3.2615e-8

90.1

289

STV

HHN

8.8702e-6

1.8433e-6

1.2970e-6

3.9396e-7

1.4764e-7

2.5947e-5

6.1956e-6

1.9879e-7

4.0701e-8

90.1

289

STV

HHE

1.3559e-5

2.4170e-6

1.1210e-6

2.7550e-7

1.4444e-7

3.8583e-5

4.1944e-6

2.3884e-7

5.2160e-8

90.1

289

MSSA

HHZ

7.4312e-6

8.4676e-7

3.0414e-7

1.2768e-7

5.7790e-8

1.1407e-5

1.2568e-6

8.8783e-8

1.5220e-8

96.5

MSSA

HHN

2.6101e-5

3.8661e-6

1.4081e-6

3.1176e-7

1.8815e-7

9.6815e-5

3.6745e-6

3.3688e-7

8.1925e-8

96.5

MSSA

HHE

2.8484e-5

4.4455e-6

1.7206e-6

3.7899e-7

2.1319e-7

1.4052e-4

4.5606e-6

4.1982e-7

1.0071e-7

96.5

GORR

HHZ

1.7231e-6

2.8539e-7

2.5708e-7

1.0678e-7

4.1060e-8

4.8807e-6

1.7438e-6

6.1854e-8

8.2180e-9

98.9

GORR

HHN

2.5300e-6

4.9969e-7

3.5801e-7

1.7974e-7

7.2734e-8

7.1952e-6

1.7424e-6

9.4978e-8

1.3919e-8

98.9

GORR

HHE

2.5476e-6

5.1172e-7

3.7199e-7

1.7098e-7

7.1612e-8

7.7441e-6

1.8236e-6

8.5708e-8

1.3566e-8

98.9

ISO

HHZ

3.0853e-6

5.6285e-7

3.9419e-7

2.1653e-7

9.2612e-8

6.8873e-6

2.1873e-6

1.2337e-7

1.7283e-8

109.7

282

ISO

HHN

3.0365e-6

4.8869e-7

3.4819e-7

1.7726e-7

7.4054e-8

1.0899e-5

1.3906e-6

1.0345e-7

1.2299e-8

109.7

282

ISO

HHE

2.4633e-6

5.8733e-7

3.7767e-7

1.2142e-7

6.5829e-8

7.5647e-6

1.5012e-6

9.8206e-8

1.4142e-8

109.7

282

PZZ

HHZ

5.2707e-6

1.3202e-6

1.0153e-6

3.2707e-7

1.3908e-7

1.5615e-5

6.3117e-6

2.0481e-7

3.6003e-8

117.1

300

PZZ

HHN

7.5354e-6

1.5554e-6

1.1394e-6

4.4150e-7

1.7079e-7

1.6575e-5

6.7013e-6

2.5333e-7

3.5369e-8

117.1

300

PZZ

HHE

4.9563e-6

1.6703e-6

1.3027e-6

5.0345e-7

1.9785e-7

1.2974e-5

8.2908e-6

2.7606e-7

4.7261e-8

117.1

300

BHB

HHZ

7.4727e-6

1.1194e-6

3.1916e-7

1.3702e-7

5.0817e-8

1.1971e-5

1.8031e-6

7.9146e-8

1.6509e-8

130.1

317

BHB

HHN

3.3734e-6

7.0171e-7

5.0288e-7

1.9560e-7

7.4786e-8

9.1647e-6

2.5723e-6

1.1072e-7

1.7971e-8

130.1

317

BHB

HHE

4.1050e-6

6.9632e-7

5.2044e-7

2.1904e-7

7.4030e-8

8.7016e-6

2.1432e-6

1.1804e-7

1.7327e-8

130.1

317

MORSI

HHZ

1.1649e-6

1.5653e-7

8.1227e-8

3.3868e-8

1.8438e-8

2.8711e-6

4.4465e-7

2.8730e-8

3.3889e-9

139.3

146

MORSI

HHN

1.3775e-6

1.5309e-7

8.7225e-8

3.1656e-8

1.5990e-8

2.7719e-6

5.8268e-7

2.7750e-8

4.1404e-9

139.3

146

MORSI

HHE

1.5724e-6

2.3027e-7

1.0045e-7

2.9470e-8

1.6364e-8

4.7961e-6

5.0510e-7

2.5651e-8

4.5370e-9

139.3

146

RSP

HHZ

8.8378e-7

1.0483e-7

7.3123e-8

2.9766e-8

1.3528e-8

1.6656e-6

3.4738e-7

1.7222e-8

2.8281e-9

156.8

326

RSP

HHN

6.3900e-7

1.2596e-7

9.3122e-8

3.1369e-8

1.5657e-8

2.4077e-6

4.7436e-7

1.8609e-8

3.2632e-9

156.8

326

RSP

HHE

7.9411e-7

1.3902e-7

1.1501e-7

4.1389e-8

2.1274e-8

2.6250e-6

9.5684e-7

3.0303e-8

3.9500e-9

156.8

326

RRL

HHZ

9.9421e-7

1.4404e-7

5.7962e-8

2.4521e-8

9.5382e-9

1.6147e-6

3.1591e-7

1.2373e-8

2.6362e-9

164.2

310

RRL

HHN

4.1876e-7

6.2727e-8

5.0073e-8

2.1822e-8

9.9463e-9

1.1857e-6

2.6610e-7

1.0657e-8

1.5283e-9

164.2

310

RRL

HHE

4.2445e-7

5.3788e-8

4.5119e-8

2.5461e-8

1.0947e-8

8.5236e-7

2.3571e-7

1.3034e-8

1.5925e-9

164.2

310

*IH (Housner Intensity) calculated on the velocity spectrum (SV) between 0.1 and 0.5 s (IH0), 0.1 and 1.0 s (IH1), 0.1 and 1.5 s (IH2)

MANUAL Location - Area: Mar Ligure , magnitude (ML): 1.8 2021-02-26 05:32:53 (UTC)

MANUAL Location - Area: Mar Ligure , magnitude (M_L): 1.8
2021-02-26 05:32:53 (UTC)